61085408 has 24 divisors (see below), whose sum is σ = 123197760. Its totient is φ = 29797120.

The previous prime is 61085363. The next prime is 61085411. The reversal of 61085408 is 80458016.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21968 + ... + 24591.

It is an arithmetic number, because the mean of its divisors is an integer number (5133240).

Almost surely, 2^61085408 is an apocalyptic number.

It is an amenable number.

61085408 is an abundant number, since it is smaller than the sum of its proper divisors (62112352).

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

61085408 is a wasteful number, since it uses less digits than its factorization.

61085408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46610 (or 46602 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 61085408 is about 7815.7154502963. The cubic root of 61085408 is about 393.8333530432.

The spelling of 61085408 in words is "sixty-one million, eighty-five thousand, four hundred eight".