78452473 has 4 divisors (see below), whose sum is σ = 85584528. Its totient is φ = 71320420.

The previous prime is 78452461. The next prime is 78452483. The reversal of 78452473 is 37425487.

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.

It is a cyclic number.

It is not a de Polignac number, because 78452473 - 2⁵ = 78452441 is a prime.

It is a super-3 number, since 3×78452473³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78452483) 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, 3566011 + ... + 3566032.

It is an arithmetic number, because the mean of its divisors is an integer number (21396132).

Almost surely, 2^78452473 is an apocalyptic number.

It is an amenable number.

78452473 is a deficient number, since it is larger than the sum of its proper divisors (7132055).

78452473 is a wasteful number, since it uses less digits than its factorization.

78452473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7132054.

The product of its digits is 188160, while the sum is 40.

The square root of 78452473 is about 8857.3400634728. The cubic root of 78452473 is about 428.0904563956.

The spelling of 78452473 in words is "seventy-eight million, four hundred fifty-two thousand, four hundred seventy-three".