969699601 has 16 divisors (see below), whose sum is σ = 1111383504. Its totient is φ = 838139904.

The previous prime is 969699587. The next prime is 969699697. The reversal of 969699601 is 106996969.

It is a Cunningham number, because it is equal to 31140²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 8761600 + 960938001 = 2960^2 + 30999^2 .

It is a cyclic number.

It is not a de Polignac number, because 969699601 - 2⁹ = 969699089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (969699701) 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, 32401 + ... + 54673.

It is an arithmetic number, because the mean of its divisors is an integer number (69461469).

Almost surely, 2^969699601 is an apocalyptic number.

It is an amenable number.

969699601 is a deficient number, since it is larger than the sum of its proper divisors (141683903).

969699601 is a wasteful number, since it uses less digits than its factorization.

969699601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22500.

The product of its (nonzero) digits is 1417176, while the sum is 55.

The square root of 969699601 is about 31140.0000160565. Note that the first 4 decimals coincide. The cubic root of 969699601 is about 989.7961015992.

The spelling of 969699601 in words is "nine hundred sixty-nine million, six hundred ninety-nine thousand, six hundred one".