723829930 has 16 divisors (see below), whose sum is σ = 1305728424. Its totient is φ = 288902080.

The previous prime is 723829921. The next prime is 723829973. The reversal of 723829930 is 39928327.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 572022889 + 151807041 = 23917^2 + 12321^2 .

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, 73897 + ... + 83116.

Almost surely, 2^723829930 is an apocalyptic number.

723829930 is a deficient number, since it is larger than the sum of its proper divisors (581898494).

723829930 is a wasteful number, since it uses less digits than its factorization.

723829930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157481.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 723829930 is about 26904.0876076480. The cubic root of 723829930 is about 897.8673496156.

The spelling of 723829930 in words is "seven hundred twenty-three million, eight hundred twenty-nine thousand, nine hundred thirty".