31463493 has 4 divisors (see below), whose sum is σ = 41951328. Its totient is φ = 20975660.

The previous prime is 31463489. The next prime is 31463507. The reversal of 31463493 is 39436413.

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.

It is a cyclic number.

It is not a de Polignac number, because 31463493 - 2² = 31463489 is a prime.

It is a super-2 number, since 2×31463493² = 1979902783522098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31463483) 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, 5243913 + ... + 5243918.

It is an arithmetic number, because the mean of its divisors is an integer number (10487832).

Almost surely, 2^31463493 is an apocalyptic number.

It is an amenable number.

31463493 is a deficient number, since it is larger than the sum of its proper divisors (10487835).

31463493 is a wasteful number, since it uses less digits than its factorization.

31463493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10487834.

The product of its digits is 23328, while the sum is 33.

The square root of 31463493 is about 5609.2328352458. The cubic root of 31463493 is about 315.6959267195.

The spelling of 31463493 in words is "thirty-one million, four hundred sixty-three thousand, four hundred ninety-three".