69394421 has 2 divisors, whose sum is σ = 69394422. Its totient is φ = 69394420.

The previous prime is 69394411. The next prime is 69394447. The reversal of 69394421 is 12449396.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67732900 + 1661521 = 8230^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 69394421 - 2¹⁰ = 69393397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69394411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34697210 + 34697211.

It is an arithmetic number, because the mean of its divisors is an integer number (34697211).

Almost surely, 2^69394421 is an apocalyptic number.

It is an amenable number.

69394421 is a deficient number, since it is larger than the sum of its proper divisors (1).

69394421 is an equidigital number, since it uses as much as digits as its factorization.

69394421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 69394421 is about 8330.3313859654. The cubic root of 69394421 is about 410.9366272763.

The spelling of 69394421 in words is "sixty-nine million, three hundred ninety-four thousand, four hundred twenty-one".