3814781 has 8 divisors (see below), whose sum is σ = 3919104. Its totient is φ = 3711760.

The previous prime is 3814777. The next prime is 3814787. The reversal of 3814781 is 1874183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3814781 - 2² = 3814777 is a prime.

It is a super-2 number, since 2×3814781² = 29105108155922, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3814787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8636 + ... + 9066.

It is an arithmetic number, because the mean of its divisors is an integer number (489888).

Almost surely, 2^3814781 is an apocalyptic number.

It is an amenable number.

3814781 is a deficient number, since it is larger than the sum of its proper divisors (104323).

3814781 is a wasteful number, since it uses less digits than its factorization.

3814781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its digits is 5376, while the sum is 32.

The square root of 3814781 is about 1953.1464358824. The cubic root of 3814781 is about 156.2511432450.

The spelling of 3814781 in words is "three million, eight hundred fourteen thousand, seven hundred eighty-one".