723749064 has 64 divisors (see below), whose sum is σ = 1966080000. Its totient is φ = 221175360.

The previous prime is 723749063. The next prime is 723749069. The reversal of 723749064 is 460947327.

It is not an unprimeable number, because it can be changed into a prime (723749063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11464 + ... + 39735.

It is an arithmetic number, because the mean of its divisors is an integer number (30720000).

Almost surely, 2^723749064 is an apocalyptic number.

It is an amenable number.

723749064 is an abundant number, since it is smaller than the sum of its proper divisors (1242330936).

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

723749064 is a wasteful number, since it uses less digits than its factorization.

723749064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51258 (or 51254 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 723749064 is about 26902.5847085368. The cubic root of 723749064 is about 897.8339119060.

The spelling of 723749064 in words is "seven hundred twenty-three million, seven hundred forty-nine thousand, sixty-four".