689892741 has 8 divisors (see below), whose sum is σ = 1022063360. Its totient is φ = 459928476.

The previous prime is 689892689. The next prime is 689892757. The reversal of 689892741 is 147298986.

It is not a de Polignac number, because 689892741 - 2¹⁰ = 689891717 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 (689892761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12775765 + ... + 12775818.

It is an arithmetic number, because the mean of its divisors is an integer number (127757920).

Almost surely, 2^689892741 is an apocalyptic number.

It is an amenable number.

689892741 is a deficient number, since it is larger than the sum of its proper divisors (332170619).

689892741 is a wasteful number, since it uses less digits than its factorization.

689892741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25551592 (or 25551586 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 689892741 is about 26265.8093536064. The cubic root of 689892741 is about 883.6098024207.

The spelling of 689892741 in words is "six hundred eighty-nine million, eight hundred ninety-two thousand, seven hundred forty-one".