7740949 has 4 divisors (see below), whose sum is σ = 8077536. Its totient is φ = 7404364.

The previous prime is 7740913. The next prime is 7740983. The reversal of 7740949 is 9490477.

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 a cyclic number.

It is not a de Polignac number, because 7740949 - 2¹⁹ = 7216661 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 (7740149) 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, 168259 + ... + 168304.

It is an arithmetic number, because the mean of its divisors is an integer number (2019384).

Almost surely, 2^7740949 is an apocalyptic number.

It is an amenable number.

7740949 is a deficient number, since it is larger than the sum of its proper divisors (336587).

7740949 is a wasteful number, since it uses less digits than its factorization.

7740949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336586.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 7740949 is about 2782.2560989240. The cubic root of 7740949 is about 197.8175120292.

The spelling of 7740949 in words is "seven million, seven hundred forty thousand, nine hundred forty-nine".