76787676 has 60 divisors (see below), whose sum is σ = 229421808. Its totient is φ = 21938688.

The previous prime is 76787663. The next prime is 76787693. The reversal of 76787676 is 67678767.

It is a happy number.

76787676 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14661 + ... + 19196.

Almost surely, 2^76787676 is an apocalyptic number.

It is an amenable number.

76787676 is an abundant number, since it is smaller than the sum of its proper divisors (152634132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76787676 is a wasteful number, since it uses less digits than its factorization.

76787676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33880 (or 33869 counting only the distinct ones).

The product of its digits is 4148928, while the sum is 54.

The square root of 76787676 is about 8762.8577530392. The cubic root of 76787676 is about 425.0406899911.

The spelling of 76787676 in words is "seventy-six million, seven hundred eighty-seven thousand, six hundred seventy-six".