83947512 has 32 divisors (see below), whose sum is σ = 228948480. Its totient is φ = 25438560.

The previous prime is 83947477. The next prime is 83947519. The reversal of 83947512 is 21574938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83947519) 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, 158728 + ... + 159255.

It is an arithmetic number, because the mean of its divisors is an integer number (7154640).

Almost surely, 2^83947512 is an apocalyptic number.

It is an amenable number.

83947512 is an abundant number, since it is smaller than the sum of its proper divisors (145000968).

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

83947512 is a wasteful number, since it uses less digits than its factorization.

83947512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318003 (or 317999 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 83947512 is about 9162.2874873036. The cubic root of 83947512 is about 437.8606758553.

It can be divided in two parts, 8394751 and 2, that added together give a triangular number (8394753 = T₄₀₉₇).

The spelling of 83947512 in words is "eighty-three million, nine hundred forty-seven thousand, five hundred twelve".