723263434 has 4 divisors (see below), whose sum is σ = 1084895154. Its totient is φ = 361631716.

The previous prime is 723263423. The next prime is 723263461. The reversal of 723263434 is 434362327.

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., 513158409 + 210105025 = 22653^2 + 14495^2 .

It is a super-2 number, since 2×723263434² = 1046219989922944712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 723263434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180815857 + ... + 180815860.

Almost surely, 2^723263434 is an apocalyptic number.

723263434 is a deficient number, since it is larger than the sum of its proper divisors (361631720).

723263434 is a wasteful number, since it uses less digits than its factorization.

723263434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361631719.

The product of its digits is 72576, while the sum is 34.

The square root of 723263434 is about 26893.5574813002. The cubic root of 723263434 is about 897.6330537810.

The spelling of 723263434 in words is "seven hundred twenty-three million, two hundred sixty-three thousand, four hundred thirty-four".