83015971 has 2 divisors, whose sum is σ = 83015972. Its totient is φ = 83015970.

The previous prime is 83015927. The next prime is 83016001. The reversal of 83015971 is 17951038.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83015971 - 2⁹ = 83015459 is a prime.

It is not a weakly prime, because it can be changed into another prime (83015171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41507985 + 41507986.

It is an arithmetic number, because the mean of its divisors is an integer number (41507986).

Almost surely, 2^83015971 is an apocalyptic number.

83015971 is a deficient number, since it is larger than the sum of its proper divisors (1).

83015971 is an equidigital number, since it uses as much as digits as its factorization.

83015971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 83015971 is about 9111.3100594810. The cubic root of 83015971 is about 436.2350439177.

The spelling of 83015971 in words is "eighty-three million, fifteen thousand, nine hundred seventy-one".