947964049 has 4 divisors (see below), whose sum is σ = 952103860. Its totient is φ = 943824240.

The previous prime is 947964041. The next prime is 947964071. The reversal of 947964049 is 940469749.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 778131025 + 169833024 = 27895^2 + 13032^2 .

It is a cyclic number.

It is not a de Polignac number, because 947964049 - 2³ = 947964041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 947963987 and 947964005.

It is not an unprimeable number, because it can be changed into a prime (947964041) 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, 2069562 + ... + 2070019.

It is an arithmetic number, because the mean of its divisors is an integer number (238025965).

Almost surely, 2^947964049 is an apocalyptic number.

It is an amenable number.

947964049 is a deficient number, since it is larger than the sum of its proper divisors (4139811).

947964049 is a wasteful number, since it uses less digits than its factorization.

947964049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139810.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 947964049 is about 30789.0248140470. The cubic root of 947964049 is about 982.3448117348.

The spelling of 947964049 in words is "nine hundred forty-seven million, nine hundred sixty-four thousand, forty-nine".