76429665 has 24 divisors (see below), whose sum is σ = 142669800. Its totient is φ = 37626624.

The previous prime is 76429649. The next prime is 76429669. The reversal of 76429665 is 56692467.

It can be written as a sum of positive squares in 4 ways, for example, as 8020224 + 68409441 = 2832^2 + 8271^2 .

It is not a de Polignac number, because 76429665 - 2⁴ = 76429649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 76429665.

It is not an unprimeable number, because it can be changed into a prime (76429669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64740 + ... + 65909.

It is an arithmetic number, because the mean of its divisors is an integer number (5944575).

Almost surely, 2^76429665 is an apocalyptic number.

It is an amenable number.

76429665 is a deficient number, since it is larger than the sum of its proper divisors (66240135).

76429665 is a wasteful number, since it uses less digits than its factorization.

76429665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130673 (or 130670 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 76429665 is about 8742.4061333251. The cubic root of 76429665 is about 424.3790979510.

The spelling of 76429665 in words is "seventy-six million, four hundred twenty-nine thousand, six hundred sixty-five".