61889366 has 64 divisors (see below), whose sum is σ = 122674176. Its totient is φ = 22704000.

The previous prime is 61889357. The next prime is 61889447. The reversal of 61889366 is 66398816.

It is a super-3 number, since 3×61889366³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61889366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357656 + ... + 357828.

It is an arithmetic number, because the mean of its divisors is an integer number (1916784).

Almost surely, 2^61889366 is an apocalyptic number.

61889366 is a deficient number, since it is larger than the sum of its proper divisors (60784810).

61889366 is a wasteful number, since it uses less digits than its factorization.

61889366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317.

The product of its digits is 373248, while the sum is 47.

The square root of 61889366 is about 7866.9794711821. The cubic root of 61889366 is about 395.5536028545.

The spelling of 61889366 in words is "sixty-one million, eight hundred eighty-nine thousand, three hundred sixty-six".