3901522 has 4 divisors (see below), whose sum is σ = 5852286. Its totient is φ = 1950760.

The previous prime is 3901511. The next prime is 3901523. The reversal of 3901522 is 2251093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3530641 + 370881 = 1879^2 + 609^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3901493 and 3901502.

It is not an unprimeable number, because it can be changed into a prime (3901523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 975379 + ... + 975382.

Almost surely, 2^3901522 is an apocalyptic number.

3901522 is a deficient number, since it is larger than the sum of its proper divisors (1950764).

3901522 is a wasteful number, since it uses less digits than its factorization.

3901522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950763.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 3901522 is about 1975.2270755536. The cubic root of 3901522 is about 157.4265652455.

The spelling of 3901522 in words is "three million, nine hundred one thousand, five hundred twenty-two".