854173947 has 8 divisors (see below), whose sum is σ = 1242434880. Its totient is φ = 517681160.

The previous prime is 854173927. The next prime is 854173963. The reversal of 854173947 is 749371458.

It is a happy number.

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 854173947 - 2²² = 849979643 is a prime.

It is a super-2 number, since 2×854173947² = 1459226263467117618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 854173896 and 854173905.

It is not an unprimeable number, because it can be changed into a prime (854173927) 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, 12941997 + ... + 12942062.

It is an arithmetic number, because the mean of its divisors is an integer number (155304360).

Almost surely, 2^854173947 is an apocalyptic number.

854173947 is a deficient number, since it is larger than the sum of its proper divisors (388260933).

854173947 is a wasteful number, since it uses less digits than its factorization.

854173947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25884073.

The product of its digits is 846720, while the sum is 48.

The square root of 854173947 is about 29226.2544127707. The cubic root of 854173947 is about 948.8162345159.

The spelling of 854173947 in words is "eight hundred fifty-four million, one hundred seventy-three thousand, nine hundred forty-seven".