1678473 has 12 divisors (see below), whose sum is σ = 2436720. Its totient is φ = 1113336.

The previous prime is 1678463. The next prime is 1678507. The reversal of 1678473 is 3748761.

It is not a de Polignac number, because 1678473 - 2⁶ = 1678409 is a prime.

It is a super-2 number, since 2×1678473² = 5634543223458, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1678423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2218 + ... + 2876.

It is an arithmetic number, because the mean of its divisors is an integer number (203060).

2^1678473 is an apocalyptic number.

It is an amenable number.

1678473 is a deficient number, since it is larger than the sum of its proper divisors (758247).

1678473 is a wasteful number, since it uses less digits than its factorization.

1678473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948 (or 945 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 1678473 is about 1295.5589527304. The cubic root of 1678473 is about 118.8424108008.

The spelling of 1678473 in words is "one million, six hundred seventy-eight thousand, four hundred seventy-three".