31034386 has 4 divisors (see below), whose sum is σ = 46551582. Its totient is φ = 15517192.

The previous prime is 31034329. The next prime is 31034411. The reversal of 31034386 is 68343013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68343013 = 1237 ⋅55249.

It can be written as a sum of positive squares in only one way, i.e., 30636225 + 398161 = 5535^2 + 631^2 .

It is a super-2 number, since 2×31034386² = 1926266228793992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7758595 + ... + 7758598.

Almost surely, 2^31034386 is an apocalyptic number.

31034386 is a deficient number, since it is larger than the sum of its proper divisors (15517196).

31034386 is a wasteful number, since it uses less digits than its factorization.

31034386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15517195.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 31034386 is about 5570.8514609528. The cubic root of 31034386 is about 314.2541723363.

Adding to 31034386 its reverse (68343013), we get a palindrome (99377399).

The spelling of 31034386 in words is "thirty-one million, thirty-four thousand, three hundred eighty-six".