61867060 has 24 divisors (see below), whose sum is σ = 130069800. Its totient is φ = 24718464.

The previous prime is 61867031. The next prime is 61867061. The reversal of 61867060 is 6076816.

It can be written as a sum of positive squares in 4 ways, for example, as 338724 + 61528336 = 582^2 + 7844^2 .

It is a super-2 number, since 2×61867060² = 7655066226087200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61867061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29982 + ... + 31978.

It is an arithmetic number, because the mean of its divisors is an integer number (5419575).

Almost surely, 2^61867060 is an apocalyptic number.

It is an amenable number.

61867060 is an abundant number, since it is smaller than the sum of its proper divisors (68202740).

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

61867060 is a wasteful number, since it uses less digits than its factorization.

61867060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555 (or 3553 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 61867060 is about 7865.5616455534. The cubic root of 61867060 is about 395.5060756865.

The spelling of 61867060 in words is "sixty-one million, eight hundred sixty-seven thousand, sixty".