4012397 has 4 divisors (see below), whose sum is σ = 4078236. Its totient is φ = 3946560.

The previous prime is 4012381. The next prime is 4012441. The reversal of 4012397 is 7932104.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1142761 + 2869636 = 1069^2 + 1694^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012397 - 2⁴ = 4012381 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 (4012367) 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, 32828 + ... + 32949.

It is an arithmetic number, because the mean of its divisors is an integer number (1019559).

Almost surely, 2^4012397 is an apocalyptic number.

It is an amenable number.

4012397 is a deficient number, since it is larger than the sum of its proper divisors (65839).

4012397 is an equidigital number, since it uses as much as digits as its factorization.

4012397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65838.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 4012397 is about 2003.0968523763. The cubic root of 4012397 is about 158.9039278278.

The spelling of 4012397 in words is "four million, twelve thousand, three hundred ninety-seven".