4699991 has 2 divisors, whose sum is σ = 4699992. Its totient is φ = 4699990.

The previous prime is 4699969. The next prime is 4699997. The reversal of 4699991 is 1999964.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4699991 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4699997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2349995 + 2349996.

It is an arithmetic number, because the mean of its divisors is an integer number (2349996).

Almost surely, 2^4699991 is an apocalyptic number.

4699991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4699991 is an equidigital number, since it uses as much as digits as its factorization.

4699991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 47.

The square root of 4699991 is about 2167.9462631717. The cubic root of 4699991 is about 167.5067614409.

The spelling of 4699991 in words is "four million, six hundred ninety-nine thousand, nine hundred ninety-one".