61889172 has 24 divisors (see below), whose sum is σ = 147931392. Its totient is φ = 20126400.

The previous prime is 61889147. The next prime is 61889189. The reversal of 61889172 is 27198816.

It is a super-2 number, since 2×61889172² = 7660539221691168, which contains 22 as substring.

It is a congruent number.

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, 62404 + ... + 63387.

It is an arithmetic number, because the mean of its divisors is an integer number (6163808).

Almost surely, 2^61889172 is an apocalyptic number.

It is an amenable number.

61889172 is an abundant number, since it is smaller than the sum of its proper divisors (86042220).

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

61889172 is a wasteful number, since it uses less digits than its factorization.

61889172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125839 (or 125837 counting only the distinct ones).

The product of its digits is 48384, while the sum is 42.

The square root of 61889172 is about 7866.9671411542. The cubic root of 61889172 is about 395.5531895499.

The spelling of 61889172 in words is "sixty-one million, eight hundred eighty-nine thousand, one hundred seventy-two".