61307496 has 32 divisors (see below), whose sum is σ = 170299200. Its totient is φ = 20435760.

The previous prime is 61307473. The next prime is 61307513. The reversal of 61307496 is 69470316.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 61307496.

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, 141700 + ... + 142131.

It is an arithmetic number, because the mean of its divisors is an integer number (5321850).

Almost surely, 2^61307496 is an apocalyptic number.

It is an amenable number.

61307496 is an abundant number, since it is smaller than the sum of its proper divisors (108991704).

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

61307496 is a wasteful number, since it uses less digits than its factorization.

61307496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283846 (or 283836 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 61307496 is about 7829.9103443143. The cubic root of 61307496 is about 394.3100619585.

Subtracting 61307496 from its reverse (69470316), we obtain a triangular number (8162820 = T₄₀₄₀).

The spelling of 61307496 in words is "sixty-one million, three hundred seven thousand, four hundred ninety-six".