672701537 has 2 divisors, whose sum is σ = 672701538. Its totient is φ = 672701536.

The previous prime is 672701483. The next prime is 672701563. The reversal of 672701537 is 735107276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 558660496 + 114041041 = 23636^2 + 10679^2 .

It is a cyclic number.

It is not a de Polignac number, because 672701537 - 2¹⁰ = 672700513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 672701537.

It is not a weakly prime, because it can be changed into another prime (672701587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336350768 + 336350769.

It is an arithmetic number, because the mean of its divisors is an integer number (336350769).

Almost surely, 2^672701537 is an apocalyptic number.

It is an amenable number.

672701537 is a deficient number, since it is larger than the sum of its proper divisors (1).

672701537 is an equidigital number, since it uses as much as digits as its factorization.

672701537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 672701537 is about 25936.4904526422. The cubic root of 672701537 is about 876.2085230363.

The spelling of 672701537 in words is "six hundred seventy-two million, seven hundred one thousand, five hundred thirty-seven".