3951361 has 4 divisors (see below), whose sum is σ = 4183812. Its totient is φ = 3718912.

The previous prime is 3951347. The next prime is 3951371. The reversal of 3951361 is 1631593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1631593 = 491 ⋅3323.

It can be written as a sum of positive squares in 2 ways, for example, as 2310400 + 1640961 = 1520^2 + 1281^2 .

It is a cyclic number.

It is not a de Polignac number, because 3951361 - 2¹¹ = 3949313 is a prime.

It is a super-2 number, since 2×3951361² = 31226507504642, which contains 22 as substring.

It is a Duffinian number.

3951361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3951301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116200 + ... + 116233.

It is an arithmetic number, because the mean of its divisors is an integer number (1045953).

Almost surely, 2^3951361 is an apocalyptic number.

It is an amenable number.

3951361 is a deficient number, since it is larger than the sum of its proper divisors (232451).

3951361 is a wasteful number, since it uses less digits than its factorization.

3951361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232450.

The product of its digits is 2430, while the sum is 28.

The square root of 3951361 is about 1987.8030586555. The cubic root of 3951361 is about 158.0940661887.

The spelling of 3951361 in words is "three million, nine hundred fifty-one thousand, three hundred sixty-one".