69680537 has 2 divisors, whose sum is σ = 69680538. Its totient is φ = 69680536.

The previous prime is 69680521. The next prime is 69680551. The reversal of 69680537 is 73508696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37994896 + 31685641 = 6164^2 + 5629^2 .

It is a cyclic number.

It is not a de Polignac number, because 69680537 - 2⁴ = 69680521 is a prime.

It is not a weakly prime, because it can be changed into another prime (69680557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34840268 + 34840269.

It is an arithmetic number, because the mean of its divisors is an integer number (34840269).

Almost surely, 2^69680537 is an apocalyptic number.

It is an amenable number.

69680537 is a deficient number, since it is larger than the sum of its proper divisors (1).

69680537 is an equidigital number, since it uses as much as digits as its factorization.

69680537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 69680537 is about 8347.4868673152. The cubic root of 69680537 is about 411.5006222963.

The spelling of 69680537 in words is "sixty-nine million, six hundred eighty thousand, five hundred thirty-seven".