994477879 has 8 divisors (see below), whose sum is σ = 1047536640. Its totient is φ = 941490936.

The previous prime is 994477877. The next prime is 994477903. The reversal of 994477879 is 978774499.

994477879 = T₂₅₇₄₇ + T₂₅₇₄₈ + T₂₅₇₄₉.

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 994477879 - 2¹ = 994477877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 994477879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994477877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11754 + ... + 46120.

It is an arithmetic number, because the mean of its divisors is an integer number (130942080).

Almost surely, 2^994477879 is an apocalyptic number.

994477879 is the 25749-th centered triangular number.

994477879 is a deficient number, since it is larger than the sum of its proper divisors (53058761).

994477879 is a wasteful number, since it uses less digits than its factorization.

994477879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35909.

The product of its digits is 32006016, while the sum is 64.

The square root of 994477879 is about 31535.3433309358. The cubic root of 994477879 is about 998.1558943648.

The spelling of 994477879 in words is "nine hundred ninety-four million, four hundred seventy-seven thousand, eight hundred seventy-nine".