1906949479 has 8 divisors (see below), whose sum is σ = 1944992000. Its totient is φ = 1869254712.

The previous prime is 1906949413. The next prime is 1906949501. The reversal of 1906949479 is 9749496091.

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 1906949479 - 2¹³ = 1906941287 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 (1906919479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75849 + ... + 97810.

It is an arithmetic number, because the mean of its divisors is an integer number (243124000).

Almost surely, 2^1906949479 is an apocalyptic number.

1906949479 is a deficient number, since it is larger than the sum of its proper divisors (38042521).

1906949479 is a wasteful number, since it uses less digits than its factorization.

1906949479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173877.

The product of its (nonzero) digits is 4408992, while the sum is 58.

The square root of 1906949479 is about 43668.6326669384. The cubic root of 1906949479 is about 1240.0705559489.

The spelling of 1906949479 in words is "one billion, nine hundred six million, nine hundred forty-nine thousand, four hundred seventy-nine".