3991053 has 8 divisors (see below), whose sum is σ = 5805216. Its totient is φ = 2418800.

The previous prime is 3991051. The next prime is 3991087. The reversal of 3991053 is 3501993.

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 3991053 - 2¹ = 3991051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3991053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3991051) 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, 60438 + ... + 60503.

It is an arithmetic number, because the mean of its divisors is an integer number (725652).

Almost surely, 2^3991053 is an apocalyptic number.

3991053 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3991053 is a deficient number, since it is larger than the sum of its proper divisors (1814163).

3991053 is a wasteful number, since it uses less digits than its factorization.

3991053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120955.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 3991053 is about 1997.7619978366. The cubic root of 3991053 is about 158.6216628675.

The spelling of 3991053 in words is "three million, nine hundred ninety-one thousand, fifty-three".