427673493 has 32 divisors (see below), whose sum is σ = 691716480. Its totient is φ = 259562880.

The previous prime is 427673461. The next prime is 427673509. The reversal of 427673493 is 394376724.

It is not a de Polignac number, because 427673493 - 2⁵ = 427673461 is a prime.

It is a super-2 number, since 2×427673493² = 365809233229642098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427673453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17278 + ... + 33968.

It is an arithmetic number, because the mean of its divisors is an integer number (21616140).

Almost surely, 2^427673493 is an apocalyptic number.

It is an amenable number.

427673493 is a deficient number, since it is larger than the sum of its proper divisors (264042987).

427673493 is a wasteful number, since it uses less digits than its factorization.

427673493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16786 (or 16780 counting only the distinct ones).

The product of its digits is 762048, while the sum is 45.

The square root of 427673493 is about 20680.2682042569. The cubic root of 427673493 is about 753.4205203386.

The spelling of 427673493 in words is "four hundred twenty-seven million, six hundred seventy-three thousand, four hundred ninety-three".