46778791 has 2 divisors, whose sum is σ = 46778792. Its totient is φ = 46778790.

The previous prime is 46778773. The next prime is 46778813. The reversal of 46778791 is 19787764.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 46778791 - 2¹⁹ = 46254503 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46778491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23389395 + 23389396.

It is an arithmetic number, because the mean of its divisors is an integer number (23389396).

Almost surely, 2^46778791 is an apocalyptic number.

46778791 is a deficient number, since it is larger than the sum of its proper divisors (1).

46778791 is an equidigital number, since it uses as much as digits as its factorization.

46778791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 49.

The square root of 46778791 is about 6839.5022479710. The cubic root of 46778791 is about 360.3155438149.

The spelling of 46778791 in words is "forty-six million, seven hundred seventy-eight thousand, seven hundred ninety-one".