3949501 has 2 divisors, whose sum is σ = 3949502. Its totient is φ = 3949500.

The previous prime is 3949487. The next prime is 3949529. The reversal of 3949501 is 1059493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3648100 + 301401 = 1910^2 + 549^2 .

It is a cyclic number.

It is not a de Polignac number, because 3949501 - 2⁵ = 3949469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3949531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974750 + 1974751.

It is an arithmetic number, because the mean of its divisors is an integer number (1974751).

Almost surely, 2^3949501 is an apocalyptic number.

It is an amenable number.

3949501 is a deficient number, since it is larger than the sum of its proper divisors (1).

3949501 is an equidigital number, since it uses as much as digits as its factorization.

3949501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 3949501 is about 1987.3351503961. The cubic root of 3949501 is about 158.0692560777.

The spelling of 3949501 in words is "three million, nine hundred forty-nine thousand, five hundred one".