31463000 has 64 divisors (see below), whose sum is σ = 74805120. Its totient is φ = 12384000.

The previous prime is 31462979. The next prime is 31463023. The reversal of 31463000 is 36413.

It is a self number, because there is not a number n which added to its sum of digits gives 31463000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72785 + ... + 73215.

It is an arithmetic number, because the mean of its divisors is an integer number (1168830).

Almost surely, 2^31463000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31463000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37402560).

31463000 is an abundant number, since it is smaller than the sum of its proper divisors (43342120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31463000 is a wasteful number, since it uses less digits than its factorization.

31463000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 31463000 is about 5609.1888896702. The cubic root of 31463000 is about 315.6942778360.

Adding to 31463000 its reverse (36413), we get a palindrome (31499413).

The spelling of 31463000 in words is "thirty-one million, four hundred sixty-three thousand".