788728690 has 16 divisors (see below), whose sum is σ = 1440902592. Its totient is φ = 310782384.

The previous prime is 788728663. The next prime is 788728693. The reversal of 788728690 is 96827887.

It is a super-2 number, since 2×788728690² = 1244185892858232200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (788728693) 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, 587934 + ... + 589273.

It is an arithmetic number, because the mean of its divisors is an integer number (90056412).

Almost surely, 2^788728690 is an apocalyptic number.

788728690 is a deficient number, since it is larger than the sum of its proper divisors (652173902).

788728690 is a wasteful number, since it uses less digits than its factorization.

788728690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177281.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The square root of 788728690 is about 28084.3139492493. The cubic root of 788728690 is about 923.9373977627.

The spelling of 788728690 in words is "seven hundred eighty-eight million, seven hundred twenty-eight thousand, six hundred ninety".