76661464 has 32 divisors (see below), whose sum is σ = 157706640. Its totient is φ = 34646400.

The previous prime is 76661443. The next prime is 76661477. The reversal of 76661464 is 46416667.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13522 + ... + 18334.

Almost surely, 2^76661464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76661464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78853320).

76661464 is an abundant number, since it is smaller than the sum of its proper divisors (81045176).

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

76661464 is a wasteful number, since it uses less digits than its factorization.

76661464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011 (or 5007 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 76661464 is about 8755.6532594661. The cubic root of 76661464 is about 424.8076896950.

The spelling of 76661464 in words is "seventy-six million, six hundred sixty-one thousand, four hundred sixty-four".