3964923551 has 4 divisors (see below), whose sum is σ = 3976902504. Its totient is φ = 3952944600.

The previous prime is 3964923541. The next prime is 3964923601. The reversal of 3964923551 is 1553294693.

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 3964923551 - 2²² = 3960729247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3964923496 and 3964923505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964923511) 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, 5988980 + ... + 5989641.

It is an arithmetic number, because the mean of its divisors is an integer number (994225626).

Almost surely, 2^3964923551 is an apocalyptic number.

3964923551 is a deficient number, since it is larger than the sum of its proper divisors (11978953).

3964923551 is a wasteful number, since it uses less digits than its factorization.

3964923551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11978952.

The product of its digits is 874800, while the sum is 47.

The square root of 3964923551 is about 62967.6389187335. The cubic root of 3964923551 is about 1582.7473898449.

The spelling of 3964923551 in words is "three billion, nine hundred sixty-four million, nine hundred twenty-three thousand, five hundred fifty-one".