61317996 has 24 divisors (see below), whose sum is σ = 143417904. Its totient is φ = 20390400.

The previous prime is 61317989. The next prime is 61318003. The reversal of 61317996 is 69971316.

It is an interprime number because it is at equal distance from previous prime (61317989) and next prime (61318003).

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, 705 + ... + 11096.

It is an arithmetic number, because the mean of its divisors is an integer number (5975746).

Almost surely, 2^61317996 is an apocalyptic number.

It is an amenable number.

61317996 is an abundant number, since it is smaller than the sum of its proper divisors (82099908).

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

61317996 is a wasteful number, since it uses less digits than its factorization.

61317996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12241 (or 12239 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 61317996 is about 7830.5808213695. The cubic root of 61317996 is about 394.3325715459.

The spelling of 61317996 in words is "sixty-one million, three hundred seventeen thousand, nine hundred ninety-six".