46991429 has 2 divisors, whose sum is σ = 46991430. Its totient is φ = 46991428.

The previous prime is 46991423. The next prime is 46991431. The reversal of 46991429 is 92419964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32376100 + 14615329 = 5690^2 + 3823^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46991429 is a prime.

Together with 46991431, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46991429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46991423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23495714 + 23495715.

It is an arithmetic number, because the mean of its divisors is an integer number (23495715).

Almost surely, 2^46991429 is an apocalyptic number.

It is an amenable number.

46991429 is a deficient number, since it is larger than the sum of its proper divisors (1).

46991429 is an equidigital number, since it uses as much as digits as its factorization.

46991429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 46991429 is about 6855.0294674786. The cubic root of 46991429 is about 360.8606696247.

The spelling of 46991429 in words is "forty-six million, nine hundred ninety-one thousand, four hundred twenty-nine".