800137699 has 2 divisors, whose sum is σ = 800137700. Its totient is φ = 800137698.

The previous prime is 800137631. The next prime is 800137721. The reversal of 800137699 is 996731008.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 800137699 - 2²¹ = 798040547 is a prime.

It is a super-2 number, since 2×800137699² = 1280440674722029202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (800137609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400068849 + 400068850.

It is an arithmetic number, because the mean of its divisors is an integer number (400068850).

Almost surely, 2^800137699 is an apocalyptic number.

800137699 is a deficient number, since it is larger than the sum of its proper divisors (1).

800137699 is an equidigital number, since it uses as much as digits as its factorization.

800137699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 800137699 is about 28286.7053401417. The cubic root of 800137699 is about 928.3710255120.

The spelling of 800137699 in words is "eight hundred million, one hundred thirty-seven thousand, six hundred ninety-nine".