83172497 has 4 divisors (see below), whose sum is σ = 83301696. Its totient is φ = 83043300.

The previous prime is 83172487. The next prime is 83172511. The reversal of 83172497 is 79427138.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83172497 - 2⁶ = 83172433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83172487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63629 + ... + 64922.

It is an arithmetic number, because the mean of its divisors is an integer number (20825424).

Almost surely, 2^83172497 is an apocalyptic number.

It is an amenable number.

83172497 is a deficient number, since it is larger than the sum of its proper divisors (129199).

83172497 is a wasteful number, since it uses less digits than its factorization.

83172497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129198.

The product of its digits is 84672, while the sum is 41.

The square root of 83172497 is about 9119.8956682629. The cubic root of 83172497 is about 436.5090444319.

The spelling of 83172497 in words is "eighty-three million, one hundred seventy-two thousand, four hundred ninety-seven".