83772312 has 32 divisors (see below), whose sum is σ = 225541680. Its totient is φ = 25776000.

The previous prime is 83772287. The next prime is 83772313. The reversal of 83772312 is 21327738.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83772313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133939 + ... + 134562.

Almost surely, 2^83772312 is an apocalyptic number.

It is an amenable number.

83772312 is an abundant number, since it is smaller than the sum of its proper divisors (141769368).

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

83772312 is a wasteful number, since it uses less digits than its factorization.

83772312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268523 (or 268519 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 83772312 is about 9152.7215624644. The cubic root of 83772312 is about 437.5558559434. Note that the first 3 decimals are identical.

The spelling of 83772312 in words is "eighty-three million, seven hundred seventy-two thousand, three hundred twelve".