727052638 has 16 divisors (see below), whose sum is σ = 1191014496. Its totient is φ = 330835680.

The previous prime is 727052633. The next prime is 727052647. The reversal of 727052638 is 836250727.

It is a self number, because there is not a number n which added to its sum of digits gives 727052638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727052633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195081 + ... + 198772.

It is an arithmetic number, because the mean of its divisors is an integer number (74438406).

Almost surely, 2^727052638 is an apocalyptic number.

727052638 is a deficient number, since it is larger than the sum of its proper divisors (463961858).

727052638 is a wasteful number, since it uses less digits than its factorization.

727052638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393939.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 727052638 is about 26963.9136254365. The cubic root of 727052638 is about 899.1979018272.

The spelling of 727052638 in words is "seven hundred twenty-seven million, fifty-two thousand, six hundred thirty-eight".