247450964 has 6 divisors (see below), whose sum is σ = 433039194. Its totient is φ = 123725480.

The previous prime is 247450961. The next prime is 247450967. The reversal of 247450964 is 469054742.

It is an interprime number because it is at equal distance from previous prime (247450961) and next prime (247450967).

It can be written as a sum of positive squares in only one way, i.e., 128640964 + 118810000 = 11342^2 + 10900^2 .

It is a super-2 number, since 2×247450964² = 122463959169058592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247450961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30931367 + ... + 30931374.

It is an arithmetic number, because the mean of its divisors is an integer number (72173199).

Almost surely, 2^247450964 is an apocalyptic number.

It is an amenable number.

247450964 is a deficient number, since it is larger than the sum of its proper divisors (185588230).

247450964 is a wasteful number, since it uses less digits than its factorization.

247450964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61862745 (or 61862743 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 247450964 is about 15730.5741789675. The cubic root of 247450964 is about 627.8121505311.

The spelling of 247450964 in words is "two hundred forty-seven million, four hundred fifty thousand, nine hundred sixty-four".