7658949 has 4 divisors (see below), whose sum is σ = 10211936. Its totient is φ = 5105964.

The previous prime is 7658947. The next prime is 7658951. The reversal of 7658949 is 9498567.

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.

It is an interprime number because it is at equal distance from previous prime (7658947) and next prime (7658951).

It is not a de Polignac number, because 7658949 - 2¹ = 7658947 is a prime.

It is an Ulam number.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7658898 and 7658907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7658947) 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, 1276489 + ... + 1276494.

It is an arithmetic number, because the mean of its divisors is an integer number (2552984).

Almost surely, 2^7658949 is an apocalyptic number.

It is an amenable number.

7658949 is a deficient number, since it is larger than the sum of its proper divisors (2552987).

7658949 is a wasteful number, since it uses less digits than its factorization.

7658949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552986.

The product of its digits is 544320, while the sum is 48.

The square root of 7658949 is about 2767.4806232384. The cubic root of 7658949 is about 197.1165363036.

The spelling of 7658949 in words is "seven million, six hundred fifty-eight thousand, nine hundred forty-nine".