77000378 has 64 divisors (see below), whose sum is σ = 154441728. Its totient is φ = 27924480.

The previous prime is 77000377. The next prime is 77000381. The reversal of 77000378 is 87300077.

It is not an unprimeable number, because it can be changed into a prime (77000377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126551 + ... + 127157.

It is an arithmetic number, because the mean of its divisors is an integer number (2413152).

Almost surely, 2^77000378 is an apocalyptic number.

77000378 is an abundant number, since it is smaller than the sum of its proper divisors (77441350).

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

77000378 is a wasteful number, since it uses less digits than its factorization.

77000378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 77000378 is about 8774.9859259146. The cubic root of 77000378 is about 425.4327826720.

The spelling of 77000378 in words is "seventy-seven million, three hundred seventy-eight", and thus it is an aban number.