3926798261 has 8 divisors (see below), whose sum is σ = 4214743704. Its totient is φ = 3645181440.

The previous prime is 3926798231. The next prime is 3926798263. The reversal of 3926798261 is 1628976293.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 320195236 + 3606603025 = 17894^2 + 60055^2 .

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 3926798261 - 2²² = 3922603957 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 (3926798263) 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, 1580870 + ... + 1583351.

It is an arithmetic number, because the mean of its divisors is an integer number (526842963).

Almost surely, 2^3926798261 is an apocalyptic number.

It is an amenable number.

3926798261 is a deficient number, since it is larger than the sum of its proper divisors (287945443).

3926798261 is a wasteful number, since it uses less digits than its factorization.

3926798261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164311.

The product of its digits is 1959552, while the sum is 53.

The square root of 3926798261 is about 62664.1704724478. The cubic root of 3926798261 is about 1577.6579975246.

The spelling of 3926798261 in words is "three billion, nine hundred twenty-six million, seven hundred ninety-eight thousand, two hundred sixty-one".