46478431 has 2 divisors, whose sum is σ = 46478432. Its totient is φ = 46478430.

The previous prime is 46478429. The next prime is 46478449. The reversal of 46478431 is 13487464.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 46478431 - 2¹ = 46478429 is a prime.

It is a super-2 number, since 2×46478431² = 4320489096443522, which contains 22 as substring.

Together with 46478429, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46478491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23239215 + 23239216.

It is an arithmetic number, because the mean of its divisors is an integer number (23239216).

Almost surely, 2^46478431 is an apocalyptic number.

46478431 is a deficient number, since it is larger than the sum of its proper divisors (1).

46478431 is an equidigital number, since it uses as much as digits as its factorization.

46478431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 37.

The square root of 46478431 is about 6817.5091492421. The cubic root of 46478431 is about 359.5427089798.

The spelling of 46478431 in words is "forty-six million, four hundred seventy-eight thousand, four hundred thirty-one".