7880949 has 8 divisors (see below), whose sum is σ = 11675520. Its totient is φ = 5253948.

The previous prime is 7880947. The next prime is 7880969. The reversal of 7880949 is 9490887.

It is not a de Polignac number, because 7880949 - 2¹ = 7880947 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7880947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145917 + ... + 145970.

It is an arithmetic number, because the mean of its divisors is an integer number (1459440).

Almost surely, 2^7880949 is an apocalyptic number.

It is an amenable number.

7880949 is a deficient number, since it is larger than the sum of its proper divisors (3794571).

7880949 is a wasteful number, since it uses less digits than its factorization.

7880949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291896 (or 291890 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 7880949 is about 2807.3027980608. The cubic root of 7880949 is about 199.0029460099.

The spelling of 7880949 in words is "seven million, eight hundred eighty thousand, nine hundred forty-nine".