427073653 has 4 divisors (see below), whose sum is σ = 427583520. Its totient is φ = 426563788.

The previous prime is 427073593. The next prime is 427073693. The reversal of 427073653 is 356370724.

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 a de Polignac number, because none of the positive numbers 2^k-427073653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427073693) 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, 253675 + ... + 255352.

It is an arithmetic number, because the mean of its divisors is an integer number (106895880).

Almost surely, 2^427073653 is an apocalyptic number.

It is an amenable number.

427073653 is a deficient number, since it is larger than the sum of its proper divisors (509867).

427073653 is an equidigital number, since it uses as much as digits as its factorization.

427073653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509866.

The product of its (nonzero) digits is 105840, while the sum is 37.

The square root of 427073653 is about 20665.7604021725. The cubic root of 427073653 is about 753.0681150380.

It can be divided in two parts, 42707 and 3653, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 427073653 in words is "four hundred twenty-seven million, seventy-three thousand, six hundred fifty-three".