77976346 has 24 divisors (see below), whose sum is σ = 140455296. Its totient is φ = 32339160.

The previous prime is 77976341. The next prime is 77976373. The reversal of 77976346 is 64367977.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 77976346.

It is not an unprimeable number, because it can be changed into a prime (77976341) 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 11 ways as a sum of consecutive naturals, for example, 9796 + ... + 15871.

It is an arithmetic number, because the mean of its divisors is an integer number (5852304).

Almost surely, 2^77976346 is an apocalyptic number.

77976346 is a deficient number, since it is larger than the sum of its proper divisors (62478950).

77976346 is a wasteful number, since it uses less digits than its factorization.

77976346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25714 (or 25707 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 49.

The square root of 77976346 is about 8830.4216207382. The cubic root of 77976346 is about 427.2226734320. Note that the first 3 decimals are identical.

The spelling of 77976346 in words is "seventy-seven million, nine hundred seventy-six thousand, three hundred forty-six".