69401473 has 4 divisors (see below), whose sum is σ = 69453828. Its totient is φ = 69349120.

The previous prime is 69401461. The next prime is 69401477. The reversal of 69401473 is 37410496.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4566769 + 64834704 = 2137^2 + 8052^2 .

It is a cyclic number.

It is not a de Polignac number, because 69401473 - 2¹³ = 69393281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69401477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24136 + ... + 26857.

It is an arithmetic number, because the mean of its divisors is an integer number (17363457).

Almost surely, 2^69401473 is an apocalyptic number.

It is an amenable number.

69401473 is a deficient number, since it is larger than the sum of its proper divisors (52355).

69401473 is a wasteful number, since it uses less digits than its factorization.

69401473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52354.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 69401473 is about 8330.7546476895. The cubic root of 69401473 is about 410.9505468724.

The spelling of 69401473 in words is "sixty-nine million, four hundred one thousand, four hundred seventy-three".