31426417 has 8 divisors (see below), whose sum is σ = 34795872. Its totient is φ = 28142400.

The previous prime is 31426411. The next prime is 31426471. The reversal of 31426417 is 71462413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31426417 - 2⁷ = 31426289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31426411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20584 + ... + 22057.

It is an arithmetic number, because the mean of its divisors is an integer number (4349484).

Almost surely, 2^31426417 is an apocalyptic number.

It is an amenable number.

31426417 is a deficient number, since it is larger than the sum of its proper divisors (3369455).

31426417 is a wasteful number, since it uses less digits than its factorization.

31426417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42719.

The product of its digits is 4032, while the sum is 28.

The square root of 31426417 is about 5605.9269527885. The cubic root of 31426417 is about 315.5718745601.

It can be divided in two parts, 3142 and 6417, that added together give a palindrome (9559).

The spelling of 31426417 in words is "thirty-one million, four hundred twenty-six thousand, four hundred seventeen".