3748815 has 32 divisors (see below), whose sum is σ = 7618560. Its totient is φ = 1713312.

The previous prime is 3748813. The next prime is 3748819. The reversal of 3748815 is 5188473.

It is not a de Polignac number, because 3748815 - 2¹ = 3748813 is a prime.

It is a super-2 number, since 2×3748815² = 28107227808450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3748815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3748813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1039 + ... + 2928.

It is an arithmetic number, because the mean of its divisors is an integer number (238080).

Almost surely, 2^3748815 is an apocalyptic number.

3748815 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3748815 is an abundant number, since it is smaller than the sum of its proper divisors (3869745).

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

3748815 is a wasteful number, since it uses less digits than its factorization.

3748815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988 (or 3982 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 3748815 is about 1936.1856832442. The cubic root of 3748815 is about 155.3452588158.

The spelling of 3748815 in words is "three million, seven hundred forty-eight thousand, eight hundred fifteen".