618630473 has 8 divisors (see below), whose sum is σ = 622778880. Its totient is φ = 614491920.

The previous prime is 618630461. The next prime is 618630479. The reversal of 618630473 is 374036816.

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 618630473 - 2¹⁴ = 618614089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618630479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156386 + ... + 160292.

It is an arithmetic number, because the mean of its divisors is an integer number (77847360).

Almost surely, 2^618630473 is an apocalyptic number.

It is an amenable number.

618630473 is a deficient number, since it is larger than the sum of its proper divisors (4148407).

618630473 is a wasteful number, since it uses less digits than its factorization.

618630473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4927.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 618630473 is about 24872.2832285257. The cubic root of 618630473 is about 852.0735869384.

The spelling of 618630473 in words is "six hundred eighteen million, six hundred thirty thousand, four hundred seventy-three".