623243354 has 4 divisors (see below), whose sum is σ = 934865034. Its totient is φ = 311621676.

The previous prime is 623243353. The next prime is 623243363. The reversal of 623243354 is 453342326.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 450925225 + 172318129 = 21235^2 + 13127^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 623243354.

It is not an unprimeable number, because it can be changed into a prime (623243353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155810837 + ... + 155810840.

Almost surely, 2^623243354 is an apocalyptic number.

623243354 is a deficient number, since it is larger than the sum of its proper divisors (311621680).

623243354 is a wasteful number, since it uses less digits than its factorization.

623243354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311621679.

The product of its digits is 51840, while the sum is 32.

The square root of 623243354 is about 24964.8423588053. The cubic root of 623243354 is about 854.1862023986.

The spelling of 623243354 in words is "six hundred twenty-three million, two hundred forty-three thousand, three hundred fifty-four".