473440397 has 4 divisors (see below), whose sum is σ = 474454656. Its totient is φ = 472426140.

The previous prime is 473440381. The next prime is 473440411. The reversal of 473440397 is 793044374.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 793044374 = 2 ⋅396522187.

It is a cyclic number.

It is not a de Polignac number, because 473440397 - 2⁴ = 473440381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (473440307) 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 3 ways as a sum of consecutive naturals, for example, 506429 + ... + 507362.

It is an arithmetic number, because the mean of its divisors is an integer number (118613664).

Almost surely, 2^473440397 is an apocalyptic number.

It is an amenable number.

473440397 is a deficient number, since it is larger than the sum of its proper divisors (1014259).

473440397 is a wasteful number, since it uses less digits than its factorization.

473440397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014258.

The product of its (nonzero) digits is 254016, while the sum is 41.

The square root of 473440397 is about 21758.6855531303. The cubic root of 473440397 is about 779.3904930525.

The spelling of 473440397 in words is "four hundred seventy-three million, four hundred forty thousand, three hundred ninety-seven".