61873960 has 32 divisors (see below), whose sum is σ = 139530600. Its totient is φ = 24693760.

The previous prime is 61873943. The next prime is 61873991. The reversal of 61873960 is 6937816.

It can be written as a sum of positive squares in 4 ways, for example, as 22259524 + 39614436 = 4718^2 + 6294^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19356 + ... + 22324.

Almost surely, 2^61873960 is an apocalyptic number.

It is an amenable number.

61873960 is an abundant number, since it is smaller than the sum of its proper divisors (77656640).

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

61873960 is a wasteful number, since it uses less digits than its factorization.

61873960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501 (or 3497 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 61873960 is about 7866.0002542588. Note that the first 3 decimals coincide. The cubic root of 61873960 is about 395.5207786667.

The spelling of 61873960 in words is "sixty-one million, eight hundred seventy-three thousand, nine hundred sixty".