445923613 has 8 divisors (see below), whose sum is σ = 447782400. Its totient is φ = 444069648.

The previous prime is 445923557. The next prime is 445923697. The reversal of 445923613 is 316329544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445923613 - 2¹⁷ = 445792541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445923713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439695 + ... + 440707.

It is an arithmetic number, because the mean of its divisors is an integer number (55972800).

Almost surely, 2^445923613 is an apocalyptic number.

It is an amenable number.

445923613 is a deficient number, since it is larger than the sum of its proper divisors (1858787).

445923613 is a wasteful number, since it uses less digits than its factorization.

445923613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411.

The product of its digits is 77760, while the sum is 37.

The square root of 445923613 is about 21116.9034898585. The cubic root of 445923613 is about 763.9885035458.

It can be divided in two parts, 44592 and 3613, that added together give a triangular number (48205 = T₃₁₀).

The spelling of 445923613 in words is "four hundred forty-five million, nine hundred twenty-three thousand, six hundred thirteen".