83913481 has 4 divisors (see below), whose sum is σ = 88330000. Its totient is φ = 79496964.

The previous prime is 83913457. The next prime is 83913523. The reversal of 83913481 is 18431938.

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 a de Polignac number, because none of the positive numbers 2^k-83913481 is a prime.

It is a super-2 number, since 2×83913481² = 14082944587074722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83913481.

It is not an unprimeable number, because it can be changed into a prime (83913421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2208231 + ... + 2208268.

It is an arithmetic number, because the mean of its divisors is an integer number (22082500).

Almost surely, 2^83913481 is an apocalyptic number.

It is an amenable number.

83913481 is a deficient number, since it is larger than the sum of its proper divisors (4416519).

83913481 is a wasteful number, since it uses less digits than its factorization.

83913481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416518.

The product of its digits is 20736, while the sum is 37.

The square root of 83913481 is about 9160.4301754885. The cubic root of 83913481 is about 437.8015005831.

The spelling of 83913481 in words is "eighty-three million, nine hundred thirteen thousand, four hundred eighty-one".