61714591 has 4 divisors (see below), whose sum is σ = 61773712. Its totient is φ = 61655472.

The previous prime is 61714577. The next prime is 61714621. The reversal of 61714591 is 19541716.

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-61714591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61714501) 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, 27966 + ... + 30091.

It is an arithmetic number, because the mean of its divisors is an integer number (15443428).

Almost surely, 2^61714591 is an apocalyptic number.

61714591 is a deficient number, since it is larger than the sum of its proper divisors (59121).

61714591 is a wasteful number, since it uses less digits than its factorization.

61714591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59120.

The product of its digits is 7560, while the sum is 34.

The square root of 61714591 is about 7855.8634789563. The cubic root of 61714591 is about 395.1809052245.

The spelling of 61714591 in words is "sixty-one million, seven hundred fourteen thousand, five hundred ninety-one".