83400772 has 24 divisors (see below), whose sum is σ = 179633216. Its totient is φ = 32993568.

The previous prime is 83400767. The next prime is 83400787. The reversal of 83400772 is 27700438.

It is an unprimeable number.

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, 114198 + ... + 114925.

Almost surely, 2^83400772 is an apocalyptic number.

It is an amenable number.

83400772 is an abundant number, since it is smaller than the sum of its proper divisors (96232444).

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

83400772 is a wasteful number, since it uses less digits than its factorization.

83400772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229147 (or 229145 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 83400772 is about 9132.4023126448. The cubic root of 83400772 is about 436.9080268018.

The spelling of 83400772 in words is "eighty-three million, four hundred thousand, seven hundred seventy-two".