7638349 has 4 divisors (see below), whose sum is σ = 7646464. Its totient is φ = 7630236.

The previous prime is 7638347. The next prime is 7638373. The reversal of 7638349 is 9438367.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7638349 - 2¹ = 7638347 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7638347) 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, 2427 + ... + 4600.

It is an arithmetic number, because the mean of its divisors is an integer number (1911616).

Almost surely, 2^7638349 is an apocalyptic number.

It is an amenable number.

7638349 is a deficient number, since it is larger than the sum of its proper divisors (8115).

7638349 is a wasteful number, since it uses less digits than its factorization.

7638349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8114.

The product of its digits is 108864, while the sum is 40.

The square root of 7638349 is about 2763.7563206622. The cubic root of 7638349 is about 196.9396518665.

It can be divided in two parts, 7638 and 349, that multiplied together give a palindrome (2665662).

The spelling of 7638349 in words is "seven million, six hundred thirty-eight thousand, three hundred forty-nine".