1653423598 has 4 divisors (see below), whose sum is σ = 2480135400. Its totient is φ = 826711798.

The previous prime is 1653423557. The next prime is 1653423613. The reversal of 1653423598 is 8953243561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8953243561 = 74843 ⋅119627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413355898 + ... + 413355901.

It is an arithmetic number, because the mean of its divisors is an integer number (620033850).

Almost surely, 2^1653423598 is an apocalyptic number.

1653423598 is a deficient number, since it is larger than the sum of its proper divisors (826711802).

1653423598 is an equidigital number, since it uses as much as digits as its factorization.

1653423598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826711801.

The product of its digits is 777600, while the sum is 46.

The square root of 1653423598 is about 40662.3117640894. The cubic root of 1653423598 is about 1182.4824683815.

The spelling of 1653423598 in words is "one billion, six hundred fifty-three million, four hundred twenty-three thousand, five hundred ninety-eight".