82977875 has 8 divisors (see below), whose sum is σ = 103556544. Its totient is φ = 66382200.

The previous prime is 82977871. The next prime is 82977899. The reversal of 82977875 is 57877928.

It is not a de Polignac number, because 82977875 - 2² = 82977871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82977871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331787 + ... + 332036.

It is an arithmetic number, because the mean of its divisors is an integer number (12944568).

Almost surely, 2^82977875 is an apocalyptic number.

82977875 is a deficient number, since it is larger than the sum of its proper divisors (20578669).

82977875 is an equidigital number, since it uses as much as digits as its factorization.

82977875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663838 (or 663828 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 53.

The square root of 82977875 is about 9109.2192310867. The cubic root of 82977875 is about 436.1683043381.

Adding to 82977875 its sum of digits (53), we get a palindrome (82977928).

The spelling of 82977875 in words is "eighty-two million, nine hundred seventy-seven thousand, eight hundred seventy-five".