61908893 has 8 divisors (see below), whose sum is σ = 66177216. Its totient is φ = 57772000.

The previous prime is 61908857. The next prime is 61908919. The reversal of 61908893 is 39880916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61908893 - 2¹⁸ = 61646749 is a prime.

It is a super-2 number, since 2×61908893² = 7665422064970898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61908853) 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, 31883 + ... + 33768.

It is an arithmetic number, because the mean of its divisors is an integer number (8272152).

Almost surely, 2^61908893 is an apocalyptic number.

It is an amenable number.

61908893 is a deficient number, since it is larger than the sum of its proper divisors (4268323).

61908893 is a wasteful number, since it uses less digits than its factorization.

61908893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65715.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 61908893 is about 7868.2204468355. The cubic root of 61908893 is about 395.5951994621.

The spelling of 61908893 in words is "sixty-one million, nine hundred eight thousand, eight hundred ninety-three".