947913051 has 4 divisors (see below), whose sum is σ = 1263884072. Its totient is φ = 631942032.

The previous prime is 947913049. The next prime is 947913067. The reversal of 947913051 is 150319749.

It is a happy number.

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

It is not a de Polignac number, because 947913051 - 2¹ = 947913049 is a prime.

It is a super-2 number, since 2×947913051² = 1797078304512257202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (947913011) 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, 157985506 + ... + 157985511.

It is an arithmetic number, because the mean of its divisors is an integer number (315971018).

Almost surely, 2^947913051 is an apocalyptic number.

947913051 is a deficient number, since it is larger than the sum of its proper divisors (315971021).

947913051 is a wasteful number, since it uses less digits than its factorization.

947913051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315971020.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 947913051 is about 30788.1966181847. The cubic root of 947913051 is about 982.3271955537.

The spelling of 947913051 in words is "nine hundred forty-seven million, nine hundred thirteen thousand, fifty-one".