4397694451 has 4 divisors (see below), whose sum is σ = 4480669872. Its totient is φ = 4314719032.

The previous prime is 4397694439. The next prime is 4397694463. The reversal of 4397694451 is 1544967934.

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

It is an interprime number because it is at equal distance from previous prime (4397694439) and next prime (4397694463).

It is a cyclic number.

It is not a de Polignac number, because 4397694451 - 2⁹ = 4397693939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4397694551) 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, 41487631 + ... + 41487736.

It is an arithmetic number, because the mean of its divisors is an integer number (1120167468).

Almost surely, 2^4397694451 is an apocalyptic number.

4397694451 is a deficient number, since it is larger than the sum of its proper divisors (82975421).

4397694451 is an equidigital number, since it uses as much as digits as its factorization.

4397694451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82975420.

The product of its digits is 3265920, while the sum is 52.

The square root of 4397694451 is about 66315.1148004737. The cubic root of 4397694451 is about 1638.3562812971.

The spelling of 4397694451 in words is "four billion, three hundred ninety-seven million, six hundred ninety-four thousand, four hundred fifty-one".