6988455 has 12 divisors (see below), whose sum is σ = 12113400. Its totient is φ = 3727152.

The previous prime is 6988453. The next prime is 6988463. The reversal of 6988455 is 5548896.

It is not a de Polignac number, because 6988455 - 2¹ = 6988453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 155299 = 6988455 / (6 + 9 + 8 + 8 + 4 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 6988455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6988451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77605 + ... + 77694.

It is an arithmetic number, because the mean of its divisors is an integer number (1009450).

Almost surely, 2^6988455 is an apocalyptic number.

6988455 is a deficient number, since it is larger than the sum of its proper divisors (5124945).

6988455 is a wasteful number, since it uses less digits than its factorization.

6988455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155310 (or 155307 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 6988455 is about 2643.5686107987. The cubic root of 6988455 is about 191.1878947391.

The spelling of 6988455 in words is "six million, nine hundred eighty-eight thousand, four hundred fifty-five".