61907701 has 2 divisors, whose sum is σ = 61907702. Its totient is φ = 61907700.

The previous prime is 61907689. The next prime is 61907711. The reversal of 61907701 is 10770916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56640676 + 5267025 = 7526^2 + 2295^2 .

It is a cyclic number.

It is not a de Polignac number, because 61907701 - 2¹⁷ = 61776629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61907711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30953850 + 30953851.

It is an arithmetic number, because the mean of its divisors is an integer number (30953851).

Almost surely, 2^61907701 is an apocalyptic number.

It is an amenable number.

61907701 is a deficient number, since it is larger than the sum of its proper divisors (1).

61907701 is an equidigital number, since it uses as much as digits as its factorization.

61907701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 61907701 is about 7868.1446987203. The cubic root of 61907701 is about 395.5926605026.

The spelling of 61907701 in words is "sixty-one million, nine hundred seven thousand, seven hundred one".