82907478 has 24 divisors (see below), whose sum is σ = 180009648. Its totient is φ = 27577872.

The previous prime is 82907477. The next prime is 82907501. The reversal of 82907478 is 87470928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82907477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4476 + ... + 13632.

It is an arithmetic number, because the mean of its divisors is an integer number (7500402).

Almost surely, 2^82907478 is an apocalyptic number.

82907478 is an abundant number, since it is smaller than the sum of its proper divisors (97102170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82907478 is a wasteful number, since it uses less digits than its factorization.

82907478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9668 (or 9665 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 82907478 is about 9105.3543588374. The cubic root of 82907478 is about 436.0449235478.

The spelling of 82907478 in words is "eighty-two million, nine hundred seven thousand, four hundred seventy-eight".