427612816 has 20 divisors (see below), whose sum is σ = 829564092. Its totient is φ = 213531776.

The previous prime is 427612813. The next prime is 427612817. The reversal of 427612816 is 618216724.

It can be written as a sum of positive squares in 2 ways, for example, as 276224400 + 151388416 = 16620^2 + 12304^2 .

It is not an unprimeable number, because it can be changed into a prime (427612813) 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, 4015 + ... + 29518.

Almost surely, 2^427612816 is an apocalyptic number.

It is an amenable number.

427612816 is a deficient number, since it is larger than the sum of its proper divisors (401951276).

427612816 is a wasteful number, since it uses less digits than its factorization.

427612816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34338 (or 34332 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 427612816 is about 20678.8011257906. The cubic root of 427612816 is about 753.3848876579.

The spelling of 427612816 in words is "four hundred twenty-seven million, six hundred twelve thousand, eight hundred sixteen".