61656794 has 4 divisors (see below), whose sum is σ = 92485194. Its totient is φ = 30828396.

The previous prime is 61656781. The next prime is 61656821. The reversal of 61656794 is 49765616.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48790225 + 12866569 = 6985^2 + 3587^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15414197 + ... + 15414200.

Almost surely, 2^61656794 is an apocalyptic number.

61656794 is a deficient number, since it is larger than the sum of its proper divisors (30828400).

61656794 is a wasteful number, since it uses less digits than its factorization.

61656794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30828399.

The product of its digits is 272160, while the sum is 44.

The square root of 61656794 is about 7852.1840273901. The cubic root of 61656794 is about 395.0575016433.

The spelling of 61656794 in words is "sixty-one million, six hundred fifty-six thousand, seven hundred ninety-four".