76697261 has 4 divisors (see below), whose sum is σ = 76752000. Its totient is φ = 76642524.

The previous prime is 76697239. The next prime is 76697267. The reversal of 76697261 is 16279667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16279667 = 37 ⋅439991.

It is a cyclic number.

It is not a de Polignac number, because 76697261 - 2⁶ = 76697197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76697267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25211 + ... + 28088.

It is an arithmetic number, because the mean of its divisors is an integer number (19188000).

Almost surely, 2^76697261 is an apocalyptic number.

It is an amenable number.

76697261 is a deficient number, since it is larger than the sum of its proper divisors (54739).

76697261 is a wasteful number, since it uses less digits than its factorization.

76697261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54738.

The product of its digits is 190512, while the sum is 44.

The square root of 76697261 is about 8757.6972429972. The cubic root of 76697261 is about 424.8738005924.

The spelling of 76697261 in words is "seventy-six million, six hundred ninety-seven thousand, two hundred sixty-one".