31419697 has 8 divisors (see below), whose sum is σ = 32800232. Its totient is φ = 30067200.

The previous prime is 31419677. The next prime is 31419719. The reversal of 31419697 is 79691413.

It can be written as a sum of positive squares in 4 ways, for example, as 4004001 + 27415696 = 2001^2 + 5236^2 .

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 31419697 - 2⁷ = 31419569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31419617) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4704 + ... + 9217.

It is an arithmetic number, because the mean of its divisors is an integer number (4100029).

Almost surely, 2^31419697 is an apocalyptic number.

31419697 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

31419697 is a deficient number, since it is larger than the sum of its proper divisors (1380535).

31419697 is a wasteful number, since it uses less digits than its factorization.

31419697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14019.

The product of its digits is 40824, while the sum is 40.

The square root of 31419697 is about 5605.3275551033. The cubic root of 31419697 is about 315.5493797466.

The spelling of 31419697 in words is "thirty-one million, four hundred nineteen thousand, six hundred ninety-seven".