83770664 has 16 divisors (see below), whose sum is σ = 161315700. Its totient is φ = 40753152.

The previous prime is 83770657. The next prime is 83770691. The reversal of 83770664 is 46607738.

It can be written as a sum of positive squares in 2 ways, for example, as 64673764 + 19096900 = 8042^2 + 4370^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141209 + ... + 141800.

Almost surely, 2^83770664 is an apocalyptic number.

It is an amenable number.

83770664 is a deficient number, since it is larger than the sum of its proper divisors (77545036).

83770664 is a wasteful number, since it uses less digits than its factorization.

83770664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283052 (or 283048 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 83770664 is about 9152.6315341545. The cubic root of 83770664 is about 437.5529866708.

The spelling of 83770664 in words is "eighty-three million, seven hundred seventy thousand, six hundred sixty-four".