60999980 has 12 divisors (see below), whose sum is σ = 128100000. Its totient is φ = 24399984.

The previous prime is 60999959. The next prime is 61000001. The reversal of 60999980 is 8999906.

It is an interprime number because it is at equal distance from previous prime (60999959) and next prime (61000001).

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 1524980 + ... + 1525019.

It is an arithmetic number, because the mean of its divisors is an integer number (10675000).

Almost surely, 2^60999980 is an apocalyptic number.

It is an amenable number.

60999980 is an abundant number, since it is smaller than the sum of its proper divisors (67100020).

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

60999980 is a wasteful number, since it uses less digits than its factorization.

60999980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050008 (or 3050006 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 50.

The square root of 60999980 is about 7810.2483955378. The cubic root of 60999980 is about 393.6496752884.

The spelling of 60999980 in words is "sixty million, nine hundred ninety-nine thousand, nine hundred eighty".