806629969 has 4 divisors (see below), whose sum is σ = 807271920. Its totient is φ = 805988020.

The previous prime is 806629963. The next prime is 806630003. The reversal of 806629969 is 969926608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 806629969 - 2³ = 806629961 is a prime.

It is a super-2 number, since 2×806629969² = 1301303813777881922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806629961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319087 + ... + 321604.

It is an arithmetic number, because the mean of its divisors is an integer number (201817980).

Almost surely, 2^806629969 is an apocalyptic number.

It is an amenable number.

806629969 is a deficient number, since it is larger than the sum of its proper divisors (641951).

806629969 is a wasteful number, since it uses less digits than its factorization.

806629969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641950.

The product of its (nonzero) digits is 2519424, while the sum is 55.

The square root of 806629969 is about 28401.2318218770. The cubic root of 806629969 is about 930.8751806966.

The spelling of 806629969 in words is "eight hundred six million, six hundred twenty-nine thousand, nine hundred sixty-nine".