83494980 has 36 divisors (see below), whose sum is σ = 253268652. Its totient is φ = 22265280.

The previous prime is 83494979. The next prime is 83495023. The reversal of 83494980 is 8949438.

It is a happy number.

83494980 is a `hidden beast` number, since 83 + 494 + 9 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 65804544 + 17690436 = 8112^2 + 4206^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231751 + ... + 232110.

Almost surely, 2^83494980 is an apocalyptic number.

It is an amenable number.

83494980 is an abundant number, since it is smaller than the sum of its proper divisors (169773672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83494980 is a wasteful number, since it uses less digits than its factorization.

83494980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463876 (or 463871 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 83494980 is about 9137.5587549411. The cubic root of 83494980 is about 437.0724726943.

The spelling of 83494980 in words is "eighty-three million, four hundred ninety-four thousand, nine hundred eighty".