61694858 has 4 divisors (see below), whose sum is σ = 92542290. Its totient is φ = 30847428.

The previous prime is 61694839. The next prime is 61694909. The reversal of 61694858 is 85849616.

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., 54656449 + 7038409 = 7393^2 + 2653^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15423713 + ... + 15423716.

Almost surely, 2^61694858 is an apocalyptic number.

61694858 is a deficient number, since it is larger than the sum of its proper divisors (30847432).

61694858 is a wasteful number, since it uses less digits than its factorization.

61694858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30847431.

The product of its digits is 414720, while the sum is 47.

The square root of 61694858 is about 7854.6074376763. The cubic root of 61694858 is about 395.1387815496.

The spelling of 61694858 in words is "sixty-one million, six hundred ninety-four thousand, eight hundred fifty-eight".