1653428973 has 32 divisors (see below), whose sum is σ = 2591834112. Its totient is φ = 918072000.

The previous prime is 1653428971. The next prime is 1653428981. The reversal of 1653428973 is 3798243561.

It is not a de Polignac number, because 1653428973 - 2¹ = 1653428971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1653428971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98548 + ... + 114098.

It is an arithmetic number, because the mean of its divisors is an integer number (80994816).

Almost surely, 2^1653428973 is an apocalyptic number.

It is an amenable number.

1653428973 is a deficient number, since it is larger than the sum of its proper divisors (938405139).

1653428973 is a wasteful number, since it uses less digits than its factorization.

1653428973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15705.

The product of its digits is 1088640, while the sum is 48.

The square root of 1653428973 is about 40662.3778571790. The cubic root of 1653428973 is about 1182.4837497301.

The spelling of 1653428973 in words is "one billion, six hundred fifty-three million, four hundred twenty-eight thousand, nine hundred seventy-three".