8469947031 has 64 divisors (see below), whose sum is σ = 14417356800. Its totient is φ = 4302014976.

The previous prime is 8469947027. The next prime is 8469947063. The reversal of 8469947031 is 1307499648.

It is not a de Polignac number, because 8469947031 - 2² = 8469947027 is a prime.

It is a super-2 number, since 2×8469947031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8469947021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3474345 + ... + 3476781.

It is an arithmetic number, because the mean of its divisors is an integer number (225271200).

Almost surely, 2^8469947031 is an apocalyptic number.

8469947031 is a deficient number, since it is larger than the sum of its proper divisors (5947409769).

8469947031 is a wasteful number, since it uses less digits than its factorization.

8469947031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 8469947031 is about 92032.3151452793. The cubic root of 8469947031 is about 2038.4194978909.

The spelling of 8469947031 in words is "eight billion, four hundred sixty-nine million, nine hundred forty-seven thousand, thirty-one".