77150864 has 40 divisors (see below), whose sum is σ = 171655680. Its totient is φ = 32905728.

The previous prime is 77150839. The next prime is 77150867. The reversal of 77150864 is 46805177.

It is not an unprimeable number, because it can be changed into a prime (77150867) by changing a digit.

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, 23432 + ... + 26520.

It is an arithmetic number, because the mean of its divisors is an integer number (4291392).

Almost surely, 2^77150864 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 77150864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85827840).

77150864 is an abundant number, since it is smaller than the sum of its proper divisors (94504816).

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

77150864 is a wasteful number, since it uses less digits than its factorization.

77150864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327 (or 3321 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 77150864 is about 8783.5564551040. The cubic root of 77150864 is about 425.7097510783.

The spelling of 77150864 in words is "seventy-seven million, one hundred fifty thousand, eight hundred sixty-four".