61585697 has 4 divisors (see below), whose sum is σ = 64263360. Its totient is φ = 58908036.

The previous prime is 61585691. The next prime is 61585703. The reversal of 61585697 is 79658516.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (61585691) and next prime (61585703).

It is a cyclic number.

It is not a de Polignac number, because 61585697 - 2⁶ = 61585633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61585691) 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, 1338797 + ... + 1338842.

It is an arithmetic number, because the mean of its divisors is an integer number (16065840).

Almost surely, 2^61585697 is an apocalyptic number.

It is an amenable number.

61585697 is a deficient number, since it is larger than the sum of its proper divisors (2677663).

61585697 is a wasteful number, since it uses less digits than its factorization.

61585697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677662.

The product of its digits is 453600, while the sum is 47.

The square root of 61585697 is about 7847.6555097685. The cubic root of 61585697 is about 394.9055951285.

It can be divided in two parts, 61585 and 697, that multiplied together give a triangular number (42924745 = T₉₂₆₅).

The spelling of 61585697 in words is "sixty-one million, five hundred eighty-five thousand, six hundred ninety-seven".