61713959 has 2 divisors, whose sum is σ = 61713960. Its totient is φ = 61713958.

The previous prime is 61713923. The next prime is 61713983. The reversal of 61713959 is 95931716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61713959 - 2²⁰ = 60665383 is a prime.

It is a super-2 number, since 2×61713959² = 7617225470907362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61713059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30856979 + 30856980.

It is an arithmetic number, because the mean of its divisors is an integer number (30856980).

Almost surely, 2^61713959 is an apocalyptic number.

61713959 is a deficient number, since it is larger than the sum of its proper divisors (1).

61713959 is an equidigital number, since it uses as much as digits as its factorization.

61713959 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 61713959 is about 7855.8232541217. The cubic root of 61713959 is about 395.1795562448.

The spelling of 61713959 in words is "sixty-one million, seven hundred thirteen thousand, nine hundred fifty-nine".