69504381 has 12 divisors (see below), whose sum is σ = 106301052. Its totient is φ = 43610496.

The previous prime is 69504377. The next prime is 69504427. The reversal of 69504381 is 18340596.

It can be written as a sum of positive squares in 2 ways, for example, as 65367225 + 4137156 = 8085^2 + 2034^2 .

It is not a de Polignac number, because 69504381 - 2² = 69504377 is a prime.

It is a super-2 number, since 2×69504381² = 9661717956386322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69504361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226986 + ... + 227291.

It is an arithmetic number, because the mean of its divisors is an integer number (8858421).

Almost surely, 2^69504381 is an apocalyptic number.

It is an amenable number.

69504381 is a deficient number, since it is larger than the sum of its proper divisors (36796671).

69504381 is a wasteful number, since it uses less digits than its factorization.

69504381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454300 (or 454297 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 69504381 is about 8336.9287510450. The cubic root of 69504381 is about 411.1535647228.

The spelling of 69504381 in words is "sixty-nine million, five hundred four thousand, three hundred eighty-one".