69882813 has 48 divisors (see below), whose sum is σ = 135547776. Its totient is φ = 33505920.

The previous prime is 69882811. The next prime is 69882823. The reversal of 69882813 is 31828896.

It is not a de Polignac number, because 69882813 - 2¹ = 69882811 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69882811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5131 + ... + 12887.

It is an arithmetic number, because the mean of its divisors is an integer number (2823912).

Almost surely, 2^69882813 is an apocalyptic number.

69882813 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

69882813 is a deficient number, since it is larger than the sum of its proper divisors (65664963).

69882813 is a wasteful number, since it uses less digits than its factorization.

69882813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7794 (or 7791 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 69882813 is about 8359.5940690921. The cubic root of 69882813 is about 411.8984200667.

It can be divided in two parts, 6988 and 2813, that added together give a square (9801 = 99²).

The spelling of 69882813 in words is "sixty-nine million, eight hundred eighty-two thousand, eight hundred thirteen".