1623696445 has 16 divisors (see below), whose sum is σ = 2235460608. Its totient is φ = 1109053440.

The previous prime is 1623696443. The next prime is 1623696491. The reversal of 1623696445 is 5446963261.

It is not a de Polignac number, because 1623696445 - 2¹ = 1623696443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1623696395 and 1623696404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623696443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81261 + ... + 99250.

It is an arithmetic number, because the mean of its divisors is an integer number (139716288).

Almost surely, 2^1623696445 is an apocalyptic number.

It is an amenable number.

1623696445 is a deficient number, since it is larger than the sum of its proper divisors (611764163).

1623696445 is a wasteful number, since it uses less digits than its factorization.

1623696445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180780.

The product of its digits is 933120, while the sum is 46.

The square root of 1623696445 is about 40295.1168877818. The cubic root of 1623696445 is about 1175.3528911375.

The spelling of 1623696445 in words is "one billion, six hundred twenty-three million, six hundred ninety-six thousand, four hundred forty-five".