61935971 has 2 divisors, whose sum is σ = 61935972. Its totient is φ = 61935970.

The previous prime is 61935949. The next prime is 61935997. The reversal of 61935971 is 17953916.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61935971 - 2¹⁴ = 61919587 is a prime.

It is not a weakly prime, because it can be changed into another prime (61935911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30967985 + 30967986.

It is an arithmetic number, because the mean of its divisors is an integer number (30967986).

Almost surely, 2^61935971 is an apocalyptic number.

61935971 is a deficient number, since it is larger than the sum of its proper divisors (1).

61935971 is an equidigital number, since it uses as much as digits as its factorization.

61935971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 41.

The square root of 61935971 is about 7869.9409781777. The cubic root of 61935971 is about 395.6528668123.

The spelling of 61935971 in words is "sixty-one million, nine hundred thirty-five thousand, nine hundred seventy-one".