946969649 has 16 divisors (see below), whose sum is σ = 1015707600. Its totient is φ = 879759360.

The previous prime is 946969643. The next prime is 946969657.

It is a happy number.

946969649 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 50865424 + 896104225 = 7132^2 + 29935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-946969649 is a prime.

It is a super-2 number, since 2×946969649² = 1793503032254366402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 946969591 and 946969600.

It is not an unprimeable number, because it can be changed into a prime (946969643) 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, 437129 + ... + 439289.

It is an arithmetic number, because the mean of its divisors is an integer number (63481725).

Almost surely, 2^946969649 is an apocalyptic number.

It is an amenable number.

946969649 is a deficient number, since it is larger than the sum of its proper divisors (68737951).

946969649 is a wasteful number, since it uses less digits than its factorization.

946969649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500.

The product of its digits is 22674816, while the sum is 62.

The square root of 946969649 is about 30772.8719654179. The cubic root of 946969649 is about 982.0012032594.

The spelling of 946969649 in words is "nine hundred forty-six million, nine hundred sixty-nine thousand, six hundred forty-nine".