7640770 has 16 divisors (see below), whose sum is σ = 13785408. Its totient is φ = 3049200.

The previous prime is 7640767. The next prime is 7640771. The reversal of 7640770 is 770467.

It is not an unprimeable number, because it can be changed into a prime (7640771) 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, 6745 + ... + 7795.

It is an arithmetic number, because the mean of its divisors is an integer number (861588).

Almost surely, 2^7640770 is an apocalyptic number.

7640770 is a deficient number, since it is larger than the sum of its proper divisors (6144638).

7640770 is a wasteful number, since it uses less digits than its factorization.

7640770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 7640770 is about 2764.1942768192. The cubic root of 7640770 is about 196.9604565601.

The spelling of 7640770 in words is "seven million, six hundred forty thousand, seven hundred seventy".