61882631 has 4 divisors (see below), whose sum is σ = 62106312. Its totient is φ = 61658952.

The previous prime is 61882573. The next prime is 61882651. The reversal of 61882631 is 13628816.

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-61882631 is a prime.

It is a super-2 number, since 2×61882631² = 7658920038964322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61882591 and 61882600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61882651) 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, 111425 + ... + 111978.

It is an arithmetic number, because the mean of its divisors is an integer number (15526578).

Almost surely, 2^61882631 is an apocalyptic number.

61882631 is a deficient number, since it is larger than the sum of its proper divisors (223681).

61882631 is a wasteful number, since it uses less digits than its factorization.

61882631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223680.

The product of its digits is 13824, while the sum is 35.

The square root of 61882631 is about 7866.5514045228. The cubic root of 61882631 is about 395.5392538620.

The spelling of 61882631 in words is "sixty-one million, eight hundred eighty-two thousand, six hundred thirty-one".