69087213 has 12 divisors (see below), whose sum is σ = 107469180. Its totient is φ = 42515136.

The previous prime is 69087203. The next prime is 69087247. The reversal of 69087213 is 31278096.

It can be written as a sum of positive squares in 2 ways, for example, as 19342404 + 49744809 = 4398^2 + 7053^2 .

It is not a de Polignac number, because 69087213 - 2⁶ = 69087149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69087203) 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, 295128 + ... + 295361.

It is an arithmetic number, because the mean of its divisors is an integer number (8955765).

Almost surely, 2^69087213 is an apocalyptic number.

It is an amenable number.

69087213 is a deficient number, since it is larger than the sum of its proper divisors (38381967).

69087213 is a wasteful number, since it uses less digits than its factorization.

69087213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590508 (or 590505 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 69087213 is about 8311.8718108498. The cubic root of 69087213 is about 410.3293269148.

The spelling of 69087213 in words is "sixty-nine million, eighty-seven thousand, two hundred thirteen".