31004469 has 6 divisors (see below), whose sum is σ = 44784246. Its totient is φ = 20669640.

The previous prime is 31004459. The next prime is 31004471. The reversal of 31004469 is 96440013.

It can be written as a sum of positive squares in only one way, i.e., 21622500 + 9381969 = 4650^2 + 3063^2 .

It is not a de Polignac number, because 31004469 - 2⁴ = 31004453 is a prime.

It is a super-2 number, since 2×31004469² = 1922554195943922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31004459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1722462 + ... + 1722479.

It is an arithmetic number, because the mean of its divisors is an integer number (7464041).

Almost surely, 2^31004469 is an apocalyptic number.

It is an amenable number.

31004469 is a deficient number, since it is larger than the sum of its proper divisors (13779777).

31004469 is a wasteful number, since it uses less digits than its factorization.

31004469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444947 (or 3444944 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 31004469 is about 5568.1656764145. The cubic root of 31004469 is about 314.1531600301.

It can be divided in two parts, 3100 and 4469, that added together give a square (7569 = 87²).

The spelling of 31004469 in words is "thirty-one million, four thousand, four hundred sixty-nine".