83921497 has 8 divisors (see below), whose sum is σ = 91634112. Its totient is φ = 76222800.

The previous prime is 83921489. The next prime is 83921501. The reversal of 83921497 is 79412938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83921497 - 2³ = 83921489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83921407) 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, 12247 + ... + 17827.

It is an arithmetic number, because the mean of its divisors is an integer number (11454264).

Almost surely, 2^83921497 is an apocalyptic number.

It is an amenable number.

83921497 is a deficient number, since it is larger than the sum of its proper divisors (7712615).

83921497 is a wasteful number, since it uses less digits than its factorization.

83921497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6959.

The product of its digits is 108864, while the sum is 43.

The square root of 83921497 is about 9160.8676990774. The cubic root of 83921497 is about 437.8154407551.

It can be divided in two parts, 8392 and 1497, that added together give a palindrome (9889).

The spelling of 83921497 in words is "eighty-three million, nine hundred twenty-one thousand, four hundred ninety-seven".