31414693 has 4 divisors (see below), whose sum is σ = 31428928. Its totient is φ = 31400460.

The previous prime is 31414681. The next prime is 31414697. The reversal of 31414693 is 39641413.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39641413 = 7 ⋅5663059.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31414693 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 (31414697) 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, 3021 + ... + 8482.

It is an arithmetic number, because the mean of its divisors is an integer number (7857232).

Almost surely, 2^31414693 is an apocalyptic number.

It is an amenable number.

31414693 is a deficient number, since it is larger than the sum of its proper divisors (14235).

31414693 is a wasteful number, since it uses less digits than its factorization.

31414693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14234.

The product of its digits is 7776, while the sum is 31.

The square root of 31414693 is about 5604.8811762606. The cubic root of 31414693 is about 315.5326270609.

The spelling of 31414693 in words is "thirty-one million, four hundred fourteen thousand, six hundred ninety-three".