1573620423 has 4 divisors (see below), whose sum is σ = 2098160568. Its totient is φ = 1049080280.

The previous prime is 1573620421. The next prime is 1573620443. The reversal of 1573620423 is 3240263751.

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

It is a cyclic number.

It is not a de Polignac number, because 1573620423 - 2¹ = 1573620421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1573620421) 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, 262270068 + ... + 262270073.

It is an arithmetic number, because the mean of its divisors is an integer number (524540142).

Almost surely, 2^1573620423 is an apocalyptic number.

1573620423 is a deficient number, since it is larger than the sum of its proper divisors (524540145).

1573620423 is an equidigital number, since it uses as much as digits as its factorization.

1573620423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524540144.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 1573620423 is about 39668.8848217340. The cubic root of 1573620423 is about 1163.1435796303.

The spelling of 1573620423 in words is "one billion, five hundred seventy-three million, six hundred twenty thousand, four hundred twenty-three".