3920193901 has 8 divisors (see below), whose sum is σ = 4263548184. Its totient is φ = 3582811200.

The previous prime is 3920193883. The next prime is 3920193917. The reversal of 3920193901 is 1093910293.

It can be written as a sum of positive squares in 4 ways, for example, as 241771401 + 3678422500 = 15549^2 + 60650^2 .

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 3920193901 - 2⁵ = 3920193869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920193941) 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, 1491526 + ... + 1494151.

It is an arithmetic number, because the mean of its divisors is an integer number (532943523).

Almost surely, 2^3920193901 is an apocalyptic number.

It is an amenable number.

3920193901 is a deficient number, since it is larger than the sum of its proper divisors (343354283).

3920193901 is a wasteful number, since it uses less digits than its factorization.

3920193901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985791.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 3920193901 is about 62611.4518359062. The cubic root of 3920193901 is about 1576.7730298817.

The spelling of 3920193901 in words is "three billion, nine hundred twenty million, one hundred ninety-three thousand, nine hundred one".