82702445 has 30 divisors (see below), whose sum is σ = 117188238. Its totient is φ = 56026992.

The previous prime is 82702441. The next prime is 82702507. The reversal of 82702445 is 54420728.

It can be written as a sum of positive squares in only one way, i.e., 66161956 + 16540489 = 8134^2 + 4067^2 .

It is not a de Polignac number, because 82702445 - 2² = 82702441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82702441) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 996374 + ... + 996456.

Almost surely, 2^82702445 is an apocalyptic number.

It is an amenable number.

82702445 is a deficient number, since it is larger than the sum of its proper divisors (34485793).

82702445 is an frugal number, since it uses more digits than its factorization.

82702445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 82702445 is about 9094.0884644916. The cubic root of 82702445 is about 435.6851755420.

The spelling of 82702445 in words is "eighty-two million, seven hundred two thousand, four hundred forty-five".