31461606 has 48 divisors (see below), whose sum is σ = 78287040. Its totient is φ = 9030960.

The previous prime is 31461571. The next prime is 31461641. The reversal of 31461606 is 60616413.

It is an interprime number because it is at equal distance from previous prime (31461571) and next prime (31461641).

It is a self number, because there is not a number n which added to its sum of digits gives 31461606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 420 + ... + 7943.

It is an arithmetic number, because the mean of its divisors is an integer number (1630980).

Almost surely, 2^31461606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31461606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39143520).

31461606 is an abundant number, since it is smaller than the sum of its proper divisors (46825434).

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

31461606 is a wasteful number, since it uses less digits than its factorization.

31461606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8401 (or 8398 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 31461606 is about 5609.0646279037. The cubic root of 31461606 is about 315.6896153825.

The spelling of 31461606 in words is "thirty-one million, four hundred sixty-one thousand, six hundred six".