427461973 has 4 divisors (see below), whose sum is σ = 427664140. Its totient is φ = 427259808.

The previous prime is 427461967. The next prime is 427461989. The reversal of 427461973 is 379164724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141919569 + 285542404 = 11913^2 + 16898^2 .

It is a cyclic number.

It is not a de Polignac number, because 427461973 - 2¹⁷ = 427330901 is a prime.

It is a super-2 number, since 2×427461973² = 365447476722105458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427461913) 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, 97878 + ... + 102151.

It is an arithmetic number, because the mean of its divisors is an integer number (106916035).

Almost surely, 2^427461973 is an apocalyptic number.

It is an amenable number.

427461973 is a deficient number, since it is larger than the sum of its proper divisors (202167).

427461973 is a wasteful number, since it uses less digits than its factorization.

427461973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202166.

The product of its digits is 254016, while the sum is 43.

The square root of 427461973 is about 20675.1535181725. The cubic root of 427461973 is about 753.2962902183.

It can be divided in two parts, 427 and 461973, that added together give a square (462400 = 680²).

The spelling of 427461973 in words is "four hundred twenty-seven million, four hundred sixty-one thousand, nine hundred seventy-three".