76769861 has 16 divisors (see below), whose sum is σ = 92659200. Its totient is φ = 62134128.

The previous prime is 76769851. The next prime is 76769863. The reversal of 76769861 is 16896767.

It is a de Polignac number, because none of the positive numbers 2^k-76769861 is a prime.

It is a super-2 number, since 2×76769861² = 11787223115918642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76769863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49646 + ... + 51168.

It is an arithmetic number, because the mean of its divisors is an integer number (5791200).

Almost surely, 2^76769861 is an apocalyptic number.

It is an amenable number.

76769861 is a deficient number, since it is larger than the sum of its proper divisors (15889339).

76769861 is a wasteful number, since it uses less digits than its factorization.

76769861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928.

The product of its digits is 762048, while the sum is 50.

The square root of 76769861 is about 8761.8411877870. The cubic root of 76769861 is about 425.0078171573.

The spelling of 76769861 in words is "seventy-six million, seven hundred sixty-nine thousand, eight hundred sixty-one".