3491431720 has 64 divisors (see below), whose sum is σ = 8983054080. Its totient is φ = 1196384256.

The previous prime is 3491431693. The next prime is 3491431747. The reversal of 3491431720 is 271341943.

It is an interprime number because it is at equal distance from previous prime (3491431693) and next prime (3491431747).

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 in 15 ways as a sum of consecutive naturals, for example, 966157 + ... + 969763.

It is an arithmetic number, because the mean of its divisors is an integer number (140360220).

Almost surely, 2^3491431720 is an apocalyptic number.

It is an amenable number.

3491431720 is an abundant number, since it is smaller than the sum of its proper divisors (5491622360).

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

3491431720 is a wasteful number, since it uses less digits than its factorization.

3491431720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7082 (or 7078 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 3491431720 is about 59088.3382741468. The cubic root of 3491431720 is about 1517.0545047406.

The spelling of 3491431720 in words is "three billion, four hundred ninety-one million, four hundred thirty-one thousand, seven hundred twenty".