969621905 has 16 divisors (see below), whose sum is σ = 1346603520. Its totient is φ = 656465472.

The previous prime is 969621893. The next prime is 969621941. The reversal of 969621905 is 509126969.

It is a cyclic number.

It is not a de Polignac number, because 969621905 - 2⁶ = 969621841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 969621905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172574 + ... + 178103.

It is an arithmetic number, because the mean of its divisors is an integer number (84162720).

Almost surely, 2^969621905 is an apocalyptic number.

It is an amenable number.

969621905 is a deficient number, since it is larger than the sum of its proper divisors (376981615).

969621905 is a wasteful number, since it uses less digits than its factorization.

969621905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350768.

The product of its (nonzero) digits is 262440, while the sum is 47.

The square root of 969621905 is about 31138.7524637709. The cubic root of 969621905 is about 989.7696654906.

The spelling of 969621905 in words is "nine hundred sixty-nine million, six hundred twenty-one thousand, nine hundred five".