47320965 has 48 divisors (see below), whose sum is σ = 85398768. Its totient is φ = 24219648.

The previous prime is 47320957. The next prime is 47320991. The reversal of 47320965 is 56902374.

It can be written as a sum of positive squares in 8 ways, for example, as 7403841 + 39917124 = 2721^2 + 6318^2 .

It is not a de Polignac number, because 47320965 - 2³ = 47320957 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161359 + ... + 161651.

It is an arithmetic number, because the mean of its divisors is an integer number (1779141).

Almost surely, 2^47320965 is an apocalyptic number.

47320965 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47320965 is a deficient number, since it is larger than the sum of its proper divisors (38077803).

47320965 is a wasteful number, since it uses less digits than its factorization.

47320965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 47320965 is about 6879.0235498943. The cubic root of 47320965 is about 361.7022392990.

The spelling of 47320965 in words is "forty-seven million, three hundred twenty thousand, nine hundred sixty-five".