82474761 has 4 divisors (see below), whose sum is σ = 109966352. Its totient is φ = 54983172.

The previous prime is 82474747. The next prime is 82474771. The reversal of 82474761 is 16747428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82474761 - 2⁵ = 82474729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82474771) 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, 13745791 + ... + 13745796.

It is an arithmetic number, because the mean of its divisors is an integer number (27491588).

Almost surely, 2^82474761 is an apocalyptic number.

It is an amenable number.

82474761 is a deficient number, since it is larger than the sum of its proper divisors (27491591).

82474761 is a wasteful number, since it uses less digits than its factorization.

82474761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27491590.

The product of its digits is 75264, while the sum is 39.

The square root of 82474761 is about 9081.5615947919. The cubic root of 82474761 is about 435.2849869871.

The spelling of 82474761 in words is "eighty-two million, four hundred seventy-four thousand, seven hundred sixty-one".