727945690 has 16 divisors (see below), whose sum is σ = 1326090528. Its totient is φ = 287669776.

The previous prime is 727945663. The next prime is 727945721. The reversal of 727945690 is 96549727.

It is a super-2 number, since 2×727945690² = 1059809855179152200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437692 + ... + 439351.

It is an arithmetic number, because the mean of its divisors is an integer number (82880658).

Almost surely, 2^727945690 is an apocalyptic number.

727945690 is a deficient number, since it is larger than the sum of its proper divisors (598144838).

727945690 is a wasteful number, since it uses less digits than its factorization.

727945690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877133.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 727945690 is about 26980.4686764333. The cubic root of 727945690 is about 899.5659182424.

The spelling of 727945690 in words is "seven hundred twenty-seven million, nine hundred forty-five thousand, six hundred ninety".