61497776 has 10 divisors (see below), whose sum is σ = 119151972. Its totient is φ = 30748880.

The previous prime is 61497773. The next prime is 61497803. The reversal of 61497776 is 67779416.

It is a self number, because there is not a number n which added to its sum of digits gives 61497776.

It is not an unprimeable number, because it can be changed into a prime (61497773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1921790 + ... + 1921821.

Almost surely, 2^61497776 is an apocalyptic number.

It is an amenable number.

61497776 is a deficient number, since it is larger than the sum of its proper divisors (57654196).

61497776 is a wasteful number, since it uses less digits than its factorization.

61497776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843619 (or 3843613 counting only the distinct ones).

The product of its digits is 444528, while the sum is 47.

The square root of 61497776 is about 7842.0517723361. The cubic root of 61497776 is about 394.7175805288.

The spelling of 61497776 in words is "sixty-one million, four hundred ninety-seven thousand, seven hundred seventy-six".