807494947 has 4 divisors (see below), whose sum is σ = 922851376. Its totient is φ = 692138520.

The previous prime is 807494887. The next prime is 807494969. The reversal of 807494947 is 749494708.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 807494947 - 2¹¹ = 807492899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 807494894 and 807494903.

It is not an unprimeable number, because it can be changed into a prime (807404947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57678204 + ... + 57678217.

It is an arithmetic number, because the mean of its divisors is an integer number (230712844).

Almost surely, 2^807494947 is an apocalyptic number.

807494947 is a deficient number, since it is larger than the sum of its proper divisors (115356429).

807494947 is a wasteful number, since it uses less digits than its factorization.

807494947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115356428.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 807494947 is about 28416.4555671533. The cubic root of 807494947 is about 931.2077986852.

The spelling of 807494947 in words is "eight hundred seven million, four hundred ninety-four thousand, nine hundred forty-seven".