77248332 has 36 divisors (see below), whose sum is σ = 223162576. Its totient is φ = 22070880.

The previous prime is 77248321. The next prime is 77248337. The reversal of 77248332 is 23384277.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 (77248337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153019 + ... + 153522.

Almost surely, 2^77248332 is an apocalyptic number.

It is an amenable number.

77248332 is an abundant number, since it is smaller than the sum of its proper divisors (145914244).

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

77248332 is a wasteful number, since it uses less digits than its factorization.

77248332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306558 (or 306553 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 77248332 is about 8789.1030259066. The cubic root of 77248332 is about 425.8889481077. Note that the first 3 decimals are identical.

The spelling of 77248332 in words is "seventy-seven million, two hundred forty-eight thousand, three hundred thirty-two".