82697405 has 32 divisors (see below), whose sum is σ = 122645760. Its totient is φ = 52254720.

The previous prime is 82697399. The next prime is 82697413. The reversal of 82697405 is 50479628.

It is not a de Polignac number, because 82697405 - 2⁴ = 82697389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22925 + ... + 26285.

It is an arithmetic number, because the mean of its divisors is an integer number (3832680).

Almost surely, 2^82697405 is an apocalyptic number.

It is an amenable number.

82697405 is a deficient number, since it is larger than the sum of its proper divisors (39948355).

82697405 is a wasteful number, since it uses less digits than its factorization.

82697405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 82697405 is about 9093.8113571813. The cubic root of 82697405 is about 435.6763249456.

The spelling of 82697405 in words is "eighty-two million, six hundred ninety-seven thousand, four hundred five".