3898860 has 48 divisors (see below), whose sum is σ = 12477696. Its totient is φ = 891072.

The previous prime is 3898841. The next prime is 3898871. The reversal of 3898860 is 688983.

3898860 = T₆ + T₇ + ... + T₂₈₅.

It is a super-2 number, since 2×3898860² = 30402218599200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 4222 + ... + 5061.

It is an arithmetic number, because the mean of its divisors is an integer number (259952).

Almost surely, 2^3898860 is an apocalyptic number.

3898860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3898860 is an abundant number, since it is smaller than the sum of its proper divisors (8578836).

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

3898860 is a wasteful number, since it uses less digits than its factorization.

3898860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9302 (or 9300 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 3898860 is about 1974.5531139982. The cubic root of 3898860 is about 157.3907531647.

The spelling of 3898860 in words is "three million, eight hundred ninety-eight thousand, eight hundred sixty".