77325378 has 32 divisors (see below), whose sum is σ = 166883136. Its totient is φ = 23744448.

The previous prime is 77325371. The next prime is 77325427. The reversal of 77325378 is 87352377.

It is not an unprimeable number, because it can be changed into a prime (77325371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70200 + ... + 71292.

It is an arithmetic number, because the mean of its divisors is an integer number (5215098).

Almost surely, 2^77325378 is an apocalyptic number.

77325378 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

77325378 is an abundant number, since it is smaller than the sum of its proper divisors (89557758).

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

77325378 is a wasteful number, since it uses less digits than its factorization.

77325378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018.

The product of its digits is 246960, while the sum is 42.

The square root of 77325378 is about 8793.4849746844. The cubic root of 77325378 is about 426.0304922078.

The spelling of 77325378 in words is "seventy-seven million, three hundred twenty-five thousand, three hundred seventy-eight".