100712690 has 32 divisors (see below), whose sum is σ = 196439040. Its totient is φ = 36955584.

The previous prime is 100712659. The next prime is 100712693. The reversal of 100712690 is 96217001.

It is a super-2 number, since 2×100712690² = 20286091854072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (100712693) 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, 19391 + ... + 24029.

It is an arithmetic number, because the mean of its divisors is an integer number (6138720).

Almost surely, 2^100712690 is an apocalyptic number.

100712690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100712690 is a deficient number, since it is larger than the sum of its proper divisors (95726350).

100712690 is a wasteful number, since it uses less digits than its factorization.

100712690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4826.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 100712690 is about 10035.5712343643. The cubic root of 100712690 is about 465.2589454566.

Adding to 100712690 its reverse (96217001), we get a palindrome (196929691).

The spelling of 100712690 in words is "one hundred million, seven hundred twelve thousand, six hundred ninety".