83257402 has 4 divisors (see below), whose sum is σ = 124886106. Its totient is φ = 41628700.

The previous prime is 83257387. The next prime is 83257403. The reversal of 83257402 is 20475238.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57744801 + 25512601 = 7599^2 + 5051^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (83257403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20814349 + ... + 20814352.

Almost surely, 2^83257402 is an apocalyptic number.

83257402 is a deficient number, since it is larger than the sum of its proper divisors (41628704).

83257402 is a wasteful number, since it uses less digits than its factorization.

83257402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41628703.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 83257402 is about 9124.5494135327. The cubic root of 83257402 is about 436.6575277953.

The spelling of 83257402 in words is "eighty-three million, two hundred fifty-seven thousand, four hundred two".