472820465 has 16 divisors (see below), whose sum is σ = 612819648. Its totient is φ = 348136896.

The previous prime is 472820461. The next prime is 472820479. The reversal of 472820465 is 564028274.

472820465 = 2665² + 2666² + ... + 2729².

It is a cyclic number.

It is not a de Polignac number, because 472820465 - 2² = 472820461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472820461) 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, 12074 + ... + 33036.

It is an arithmetic number, because the mean of its divisors is an integer number (38301228).

Almost surely, 2^472820465 is an apocalyptic number.

It is an amenable number.

472820465 is a deficient number, since it is larger than the sum of its proper divisors (139999183).

472820465 is a wasteful number, since it uses less digits than its factorization.

472820465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21328.

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 472820465 is about 21744.4352651431. The cubic root of 472820465 is about 779.0501614753.

The spelling of 472820465 in words is "four hundred seventy-two million, eight hundred twenty thousand, four hundred sixty-five".