83457472 has 56 divisors (see below), whose sum is σ = 190195200. Its totient is φ = 35592960.

The previous prime is 83457421. The next prime is 83457499. The reversal of 83457472 is 27475438.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139029 + ... + 139627.

Almost surely, 2^83457472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83457472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95097600).

83457472 is an abundant number, since it is smaller than the sum of its proper divisors (106737728).

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

83457472 is a wasteful number, since it uses less digits than its factorization.

83457472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 919 counting only the distinct ones).

The product of its digits is 188160, while the sum is 40.

The square root of 83457472 is about 9135.5061162477. The cubic root of 83457472 is about 437.0070149876.

The spelling of 83457472 in words is "eighty-three million, four hundred fifty-seven thousand, four hundred seventy-two".