7287970788 has 180 divisors, whose sum is σ = 23132179840. Its totient is φ = 1959614208.

The previous prime is 7287970783. The next prime is 7287970793. The reversal of 7287970788 is 8870797827.

It is an interprime number because it is at equal distance from previous prime (7287970783) and next prime (7287970793).

It is a super-2 number, since 2×7287970788² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (7287970783) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 649893 + ... + 661011.

Almost surely, 2^7287970788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7287970788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11566089920).

7287970788 is an abundant number, since it is smaller than the sum of its proper divisors (15844209052).

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

7287970788 is a wasteful number, since it uses less digits than its factorization.

7287970788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11176 (or 11148 counting only the distinct ones).

The product of its (nonzero) digits is 22127616, while the sum is 63.

The square root of 7287970788 is about 85369.6127905006. The cubic root of 7287970788 is about 1938.8112946736.

The spelling of 7287970788 in words is "seven billion, two hundred eighty-seven million, nine hundred seventy thousand, seven hundred eighty-eight".