61860546 has 24 divisors (see below), whose sum is σ = 146216304. Its totient is φ = 18745560.

The previous prime is 61860541. The next prime is 61860571. The reversal of 61860546 is 64506816.

61860546 is a `hidden beast` number, since 6 + 1 + 8 + 605 + 46 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 61860546.

It is not an unprimeable number, because it can be changed into a prime (61860541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156016 + ... + 156411.

It is an arithmetic number, because the mean of its divisors is an integer number (6092346).

Almost surely, 2^61860546 is an apocalyptic number.

61860546 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

61860546 is an abundant number, since it is smaller than the sum of its proper divisors (84355758).

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

61860546 is a wasteful number, since it uses less digits than its factorization.

61860546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312446 (or 312443 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 61860546 is about 7865.1475510635. The cubic root of 61860546 is about 395.4921942176.

The spelling of 61860546 in words is "sixty-one million, eight hundred sixty thousand, five hundred forty-six".