692992638 has 64 divisors (see below), whose sum is σ = 1675705920. Its totient is φ = 211009536.

The previous prime is 692992633. The next prime is 692992667. The reversal of 692992638 is 836299296.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (692992633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63006 + ... + 73182.

It is an arithmetic number, because the mean of its divisors is an integer number (26182905).

Almost surely, 2^692992638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 692992638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837852960).

692992638 is an abundant number, since it is smaller than the sum of its proper divisors (982713282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

692992638 is a wasteful number, since it uses less digits than its factorization.

692992638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10298 (or 10292 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 692992638 is about 26324.7533321777. The cubic root of 692992638 is about 884.9312672849.

The spelling of 692992638 in words is "six hundred ninety-two million, nine hundred ninety-two thousand, six hundred thirty-eight".