1628973095 has 4 divisors (see below), whose sum is σ = 1954767720. Its totient is φ = 1303178472.

The previous prime is 1628973061. The next prime is 1628973121. The reversal of 1628973095 is 5903798261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5903798261 = 1823 ⋅3238507.

It is a cyclic number.

It is not a de Polignac number, because 1628973095 - 2²⁶ = 1561864231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162897305 + ... + 162897314.

It is an arithmetic number, because the mean of its divisors is an integer number (488691930).

Almost surely, 2^1628973095 is an apocalyptic number.

1628973095 is a deficient number, since it is larger than the sum of its proper divisors (325794625).

1628973095 is an equidigital number, since it uses as much as digits as its factorization.

1628973095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325794624.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 1628973095 is about 40360.5388343615. The cubic root of 1628973095 is about 1176.6247256739.

The spelling of 1628973095 in words is "one billion, six hundred twenty-eight million, nine hundred seventy-three thousand, ninety-five".