427994967 has 8 divisors (see below), whose sum is σ = 570794224. Its totient is φ = 285262848.

The previous prime is 427994951. The next prime is 427994977. The reversal of 427994967 is 769499724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 427994967 - 2⁴ = 427994951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427994977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693 + ... + 29265.

It is an arithmetic number, because the mean of its divisors is an integer number (71349278).

Almost surely, 2^427994967 is an apocalyptic number.

427994967 is a deficient number, since it is larger than the sum of its proper divisors (142799257).

427994967 is a wasteful number, since it uses less digits than its factorization.

427994967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33569.

The product of its digits is 6858432, while the sum is 57.

The square root of 427994967 is about 20688.0392256009. The cubic root of 427994967 is about 753.6092503322.

The spelling of 427994967 in words is "four hundred twenty-seven million, nine hundred ninety-four thousand, nine hundred sixty-seven".