7890703540 has 12 divisors (see below), whose sum is σ = 16570477476. Its totient is φ = 3156281408.

The previous prime is 7890703501. The next prime is 7890703543. The reversal of 7890703540 is 453070987.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2351474064 + 5539229476 = 48492^2 + 74426^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7890703543) 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, 197267569 + ... + 197267608.

It is an arithmetic number, because the mean of its divisors is an integer number (1380873123).

Almost surely, 2^7890703540 is an apocalyptic number.

It is an amenable number.

7890703540 is an abundant number, since it is smaller than the sum of its proper divisors (8679773936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7890703540 is a wasteful number, since it uses less digits than its factorization.

7890703540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394535186 (or 394535184 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 7890703540 is about 88829.6321055086. The cubic root of 7890703540 is about 1990.8501657684.

The spelling of 7890703540 in words is "seven billion, eight hundred ninety million, seven hundred three thousand, five hundred forty".