61922887 has 4 divisors (see below), whose sum is σ = 66686200. Its totient is φ = 57159576.

The previous prime is 61922851. The next prime is 61922893. The reversal of 61922887 is 78822916.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61922887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61922827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381637 + ... + 2381662.

It is an arithmetic number, because the mean of its divisors is an integer number (16671550).

Almost surely, 2^61922887 is an apocalyptic number.

61922887 is a deficient number, since it is larger than the sum of its proper divisors (4763313).

61922887 is a wasteful number, since it uses less digits than its factorization.

61922887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4763312.

The product of its digits is 96768, while the sum is 43.

The square root of 61922887 is about 7869.1096700961. The cubic root of 61922887 is about 395.6250042385.

The spelling of 61922887 in words is "sixty-one million, nine hundred twenty-two thousand, eight hundred eighty-seven".