912609491 has 4 divisors (see below), whose sum is σ = 929828592. Its totient is φ = 895390392.

The previous prime is 912609461. The next prime is 912609557. The reversal of 912609491 is 194906219.

It is a happy number.

912609491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 912609491 - 2¹⁴ = 912593107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (912609461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8609471 + ... + 8609576.

It is an arithmetic number, because the mean of its divisors is an integer number (232457148).

Almost surely, 2^912609491 is an apocalyptic number.

912609491 is a deficient number, since it is larger than the sum of its proper divisors (17219101).

912609491 is a wasteful number, since it uses less digits than its factorization.

912609491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17219100.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 912609491 is about 30209.4271875519. The cubic root of 912609491 is about 969.9775000981.

The spelling of 912609491 in words is "nine hundred twelve million, six hundred nine thousand, four hundred ninety-one".