82874415 has 16 divisors (see below), whose sum is σ = 142799328. Its totient is φ = 40799616.

The previous prime is 82874411. The next prime is 82874423. The reversal of 82874415 is 51447828.

It is a happy number.

It is not a de Polignac number, because 82874415 - 2² = 82874411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82874411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212304 + ... + 212693.

It is an arithmetic number, because the mean of its divisors is an integer number (8924958).

Almost surely, 2^82874415 is an apocalyptic number.

82874415 is a deficient number, since it is larger than the sum of its proper divisors (59924913).

82874415 is a wasteful number, since it uses less digits than its factorization.

82874415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425018.

The product of its digits is 71680, while the sum is 39.

The square root of 82874415 is about 9103.5385977102. The cubic root of 82874415 is about 435.9869518161.

The spelling of 82874415 in words is "eighty-two million, eight hundred seventy-four thousand, four hundred fifteen".