61793915 has 16 divisors (see below), whose sum is σ = 76307616. Its totient is φ = 48019200.

The previous prime is 61793911. The next prime is 61793933. The reversal of 61793915 is 51939716.

It is not a de Polignac number, because 61793915 - 2² = 61793911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61793911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24095 + ... + 26535.

It is an arithmetic number, because the mean of its divisors is an integer number (4769226).

Almost surely, 2^61793915 is an apocalyptic number.

61793915 is a deficient number, since it is larger than the sum of its proper divisors (14513701).

61793915 is a wasteful number, since it uses less digits than its factorization.

61793915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590.

The product of its digits is 51030, while the sum is 41.

The square root of 61793915 is about 7860.9105706655. The cubic root of 61793915 is about 395.3501461802.

The spelling of 61793915 in words is "sixty-one million, seven hundred ninety-three thousand, nine hundred fifteen".