1672501 has 2 divisors, whose sum is σ = 1672502. Its totient is φ = 1672500.

The previous prime is 1672499. The next prime is 1672507. The reversal of 1672501 is 1052761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1368900 + 303601 = 1170^2 + 551^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672501 - 2¹ = 1672499 is a prime.

Together with 1672499, it forms a pair of twin primes.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836250 + 836251.

It is an arithmetic number, because the mean of its divisors is an integer number (836251).

2^1672501 is an apocalyptic number.

It is an amenable number.

1672501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672501 is an equidigital number, since it uses as much as digits as its factorization.

1672501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1672501 is about 1293.2521022600. The cubic root of 1672501 is about 118.7012963711.

The spelling of 1672501 in words is "one million, six hundred seventy-two thousand, five hundred one".