7897634 has 4 divisors (see below), whose sum is σ = 11846454. Its totient is φ = 3948816.

The previous prime is 7897633. The next prime is 7897649. The reversal of 7897634 is 4367987.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4367987 = 13 ⋅335999.

It can be written as a sum of positive squares in only one way, i.e., 5929225 + 1968409 = 2435^2 + 1403^2 .

It is not an unprimeable number, because it can be changed into a prime (7897633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974407 + ... + 1974410.

Almost surely, 2^7897634 is an apocalyptic number.

7897634 is a deficient number, since it is larger than the sum of its proper divisors (3948820).

7897634 is a wasteful number, since it uses less digits than its factorization.

7897634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948819.

The product of its digits is 254016, while the sum is 44.

The square root of 7897634 is about 2810.2729404810. The cubic root of 7897634 is about 199.1432854408.

The spelling of 7897634 in words is "seven million, eight hundred ninety-seven thousand, six hundred thirty-four".