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1672420537 is a prime number
BaseRepresentation
bin110001110101111…
…0001110010111001
311022112221202200101
41203223301302321
511411114424122
6433541435401
756305224424
oct14353616271
94275852611
101672420537
11789046337
123a810bb61
13208641268
1411c1869bb
159bc57027
hex63af1cb9

1672420537 has 2 divisors, whose sum is σ = 1672420538. Its totient is φ = 1672420536.

The previous prime is 1672420531. The next prime is 1672420559. The reversal of 1672420537 is 7350242761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 922701376 + 749719161 = 30376^2 + 27381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1672420537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1672420496 and 1672420505.

It is not a weakly prime, because it can be changed into another prime (1672420531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836210268 + 836210269.

It is an arithmetic number, because the mean of its divisors is an integer number (836210269).

Almost surely, 21672420537 is an apocalyptic number.

It is an amenable number.

1672420537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672420537 is an equidigital number, since it uses as much as digits as its factorization.

1672420537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 1672420537 is about 40895.2385614756. The cubic root of 1672420537 is about 1186.9939279167.

The spelling of 1672420537 in words is "one billion, six hundred seventy-two million, four hundred twenty thousand, five hundred thirty-seven".