82970519 has 4 divisors (see below), whose sum is σ = 82988880. Its totient is φ = 82952160.

The previous prime is 82970483. The next prime is 82970527. The reversal of 82970519 is 91507928.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82970519 is a prime.

It is a super-2 number, since 2×82970519² = 13768214046258722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82970119) 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, 2879 + ... + 13199.

It is an arithmetic number, because the mean of its divisors is an integer number (20747220).

Almost surely, 2^82970519 is an apocalyptic number.

82970519 is a deficient number, since it is larger than the sum of its proper divisors (18361).

82970519 is a wasteful number, since it uses less digits than its factorization.

82970519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18360.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 82970519 is about 9108.8154553707. The cubic root of 82970519 is about 436.1554151639.

The spelling of 82970519 in words is "eighty-two million, nine hundred seventy thousand, five hundred nineteen".