69726241 has 8 divisors (see below), whose sum is σ = 77119784. Its totient is φ = 62622720.

The previous prime is 69726227. The next prime is 69726247. The reversal of 69726241 is 14262796.

69726241 = 5904² + 5905².

It can be written as a sum of positive squares in 4 ways, for example, as 13476241 + 56250000 = 3671^2 + 7500^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69726241 - 2⁷ = 69726113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69726241.

It is not an unprimeable number, because it can be changed into a prime (69726247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72000 + ... + 72961.

It is an arithmetic number, because the mean of its divisors is an integer number (9639973).

Almost surely, 2^69726241 is an apocalyptic number.

69726241 is the 5905-th centered square number.

It is an amenable number.

69726241 is a deficient number, since it is larger than the sum of its proper divisors (7393543).

69726241 is a wasteful number, since it uses less digits than its factorization.

69726241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145011.

The product of its digits is 36288, while the sum is 37.

The square root of 69726241 is about 8350.2240089713. The cubic root of 69726241 is about 411.5905714405.

The spelling of 69726241 in words is "sixty-nine million, seven hundred twenty-six thousand, two hundred forty-one".