31427036 has 6 divisors (see below), whose sum is σ = 54997320. Its totient is φ = 15713516.

The previous prime is 31427027. The next prime is 31427089. The reversal of 31427036 is 63072413.

It is a junction number, because it is equal to n+sod(n) for n = 31426996 and 31427014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3928376 + ... + 3928383.

It is an arithmetic number, because the mean of its divisors is an integer number (9166220).

Almost surely, 2^31427036 is an apocalyptic number.

It is an amenable number.

31427036 is a deficient number, since it is larger than the sum of its proper divisors (23570284).

31427036 is a wasteful number, since it uses less digits than its factorization.

31427036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856763 (or 7856761 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 31427036 is about 5605.9821619409. The cubic root of 31427036 is about 315.5739464657.

Adding to 31427036 its reverse (63072413), we get a palindrome (94499449).

The spelling of 31427036 in words is "thirty-one million, four hundred twenty-seven thousand, thirty-six".