61608856 has 8 divisors (see below), whose sum is σ = 115516620. Its totient is φ = 30804424.

The previous prime is 61608853. The next prime is 61608857. The reversal of 61608856 is 65880616.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×61608856² = 7591302275257472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61608853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3850546 + ... + 3850561.

Almost surely, 2^61608856 is an apocalyptic number.

It is an amenable number.

61608856 is a deficient number, since it is larger than the sum of its proper divisors (53907764).

61608856 is a wasteful number, since it uses less digits than its factorization.

61608856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7701113 (or 7701109 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 61608856 is about 7849.1309073043. The cubic root of 61608856 is about 394.9550896972.

The spelling of 61608856 in words is "sixty-one million, six hundred eight thousand, eight hundred fifty-six".