77266152 has 24 divisors (see below), whose sum is σ = 209262690. Its totient is φ = 25755360.

The previous prime is 77266127. The next prime is 77266153. The reversal of 77266152 is 25166277.

It can be written as a sum of positive squares in only one way, i.e., 68657796 + 8608356 = 8286^2 + 2934^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (77266153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 536499 + ... + 536642.

Almost surely, 2^77266152 is an apocalyptic number.

77266152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

77266152 is an abundant number, since it is smaller than the sum of its proper divisors (131996538).

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

77266152 is a wasteful number, since it uses less digits than its factorization.

77266152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073153 (or 1073146 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 77266152 is about 8790.1167227745. The cubic root of 77266152 is about 425.9216942627.

The spelling of 77266152 in words is "seventy-seven million, two hundred sixty-six thousand, one hundred fifty-two".