692561 has 4 divisors (see below), whose sum is σ = 694512. Its totient is φ = 690612.

The previous prime is 692543. The next prime is 692567. The reversal of 692561 is 165296.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-692561 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (692567) 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, 275 + ... + 1208.

It is an arithmetic number, because the mean of its divisors is an integer number (173628).

2⁶⁹²⁵⁶¹ is an apocalyptic number.

It is an amenable number.

692561 is a deficient number, since it is larger than the sum of its proper divisors (1951).

692561 is a wasteful number, since it uses less digits than its factorization.

692561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950.

The product of its digits is 3240, while the sum is 29.

The square root of 692561 is about 832.2024993954. The cubic root of 692561 is about 88.4747499438.

The spelling of 692561 in words is "six hundred ninety-two thousand, five hundred sixty-one".