31429079 has 8 divisors (see below), whose sum is σ = 34626960. Its totient is φ = 28288000.

The previous prime is 31429061. The next prime is 31429081. The reversal of 31429079 is 97092413.

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

It is a cyclic number.

It is not a de Polignac number, because 31429079 - 2²⁰ = 30380503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31429019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13034 + ... + 15255.

It is an arithmetic number, because the mean of its divisors is an integer number (4328370).

Almost surely, 2^31429079 is an apocalyptic number.

31429079 is a deficient number, since it is larger than the sum of its proper divisors (3197881).

31429079 is a wasteful number, since it uses less digits than its factorization.

31429079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28401.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 31429079 is about 5606.1643750429. The cubic root of 31429079 is about 315.5807845653.

It can be divided in two parts, 3142 and 9079, that added together give a palindrome (12221).

The spelling of 31429079 in words is "thirty-one million, four hundred twenty-nine thousand, seventy-nine".