61696858 has 4 divisors (see below), whose sum is σ = 92545290. Its totient is φ = 30848428.

The previous prime is 61696837. The next prime is 61696909. The reversal of 61696858 is 85869616.

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., 53246209 + 8450649 = 7297^2 + 2907^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15424213 + ... + 15424216.

Almost surely, 2^61696858 is an apocalyptic number.

61696858 is a deficient number, since it is larger than the sum of its proper divisors (30848432).

61696858 is a wasteful number, since it uses less digits than its factorization.

61696858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30848431.

The product of its digits is 622080, while the sum is 49.

The square root of 61696858 is about 7854.7347504547. The cubic root of 61696858 is about 395.1430513221.

The spelling of 61696858 in words is "sixty-one million, six hundred ninety-six thousand, eight hundred fifty-eight".