82450664 has 8 divisors (see below), whose sum is σ = 154595010. Its totient is φ = 41225328.

The previous prime is 82450661. The next prime is 82450673. The reversal of 82450664 is 46605428.

It can be written as a sum of positive squares in only one way, i.e., 61748164 + 20702500 = 7858^2 + 4550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×82450664² = 13596223988081792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82450661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5153159 + ... + 5153174.

Almost surely, 2^82450664 is an apocalyptic number.

It is an amenable number.

82450664 is a deficient number, since it is larger than the sum of its proper divisors (72144346).

82450664 is a wasteful number, since it uses less digits than its factorization.

82450664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10306339 (or 10306335 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 82450664 is about 9080.2347987263. The cubic root of 82450664 is about 435.2425898387.

The spelling of 82450664 in words is "eighty-two million, four hundred fifty thousand, six hundred sixty-four".