61700931 has 6 divisors (see below), whose sum is σ = 89123580. Its totient is φ = 41133948.

The previous prime is 61700921. The next prime is 61700981. The reversal of 61700931 is 13900716.

It is not a de Polignac number, because 61700931 - 2¹¹ = 61698883 is a prime.

It is a super-2 number, since 2×61700931² = 7614009772533522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61700895 and 61700904.

It is not an unprimeable number, because it can be changed into a prime (61700911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3427821 + ... + 3427838.

It is an arithmetic number, because the mean of its divisors is an integer number (14853930).

Almost surely, 2^61700931 is an apocalyptic number.

61700931 is a deficient number, since it is larger than the sum of its proper divisors (27422649).

61700931 is a wasteful number, since it uses less digits than its factorization.

61700931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855665 (or 6855662 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 61700931 is about 7854.9940165477. The cubic root of 61700931 is about 395.1517464285.

The spelling of 61700931 in words is "sixty-one million, seven hundred thousand, nine hundred thirty-one".