623142694 has 16 divisors (see below), whose sum is σ = 954264816. Its totient is φ = 305100000.

The previous prime is 623142683. The next prime is 623142727. The reversal of 623142694 is 496241326.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16444 + ... + 38944.

It is an arithmetic number, because the mean of its divisors is an integer number (59641551).

Almost surely, 2^623142694 is an apocalyptic number.

623142694 is a deficient number, since it is larger than the sum of its proper divisors (331122122).

623142694 is a wasteful number, since it uses less digits than its factorization.

623142694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22791.

The product of its digits is 62208, while the sum is 37.

The square root of 623142694 is about 24962.8262422347. The cubic root of 623142694 is about 854.1402134003.

The spelling of 623142694 in words is "six hundred twenty-three million, one hundred forty-two thousand, six hundred ninety-four".