69249841 has 2 divisors, whose sum is σ = 69249842. Its totient is φ = 69249840.

The previous prime is 69249839. The next prime is 69249871. The reversal of 69249841 is 14894296.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53875600 + 15374241 = 7340^2 + 3921^2 .

It is a cyclic number.

It is not a de Polignac number, because 69249841 - 2¹ = 69249839 is a prime.

Together with 69249839, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (69249821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34624920 + 34624921.

It is an arithmetic number, because the mean of its divisors is an integer number (34624921).

Almost surely, 2^69249841 is an apocalyptic number.

It is an amenable number.

69249841 is a deficient number, since it is larger than the sum of its proper divisors (1).

69249841 is an equidigital number, since it uses as much as digits as its factorization.

69249841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 69249841 is about 8321.6489351570. The cubic root of 69249841 is about 410.6510398276.

The spelling of 69249841 in words is "sixty-nine million, two hundred forty-nine thousand, eight hundred forty-one".