994507 has 4 divisors (see below), whose sum is σ = 997000.
Its totient is φ = 992016.
The previous prime is 994501. The next prime is 994549. The reversal of 994507 is 705499.
It is a semiprime because it is the product of two primes.
It is a 4-Lehmer number, since φ(994507) divides (994507-1)4.
It is a cyclic number.
It is not a de Polignac number, because 994507 - 215 = 961739 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (994501) 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, 498 + ... + 1495.
It is an arithmetic number, because the mean of its divisors is an integer number (249250).
2994507 is an apocalyptic number.
994507 is the 499-th decagonal number.
994507 is a deficient number, since it is larger than the sum of its proper divisors (2493).
994507 is a wasteful number, since it uses less digits than its factorization.
994507 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2492.
The product of its (nonzero) digits is 11340, while the sum is 34.
The square root of 994507 is about 997.2497179744.
The cubic root of 994507 is about 99.8165637170.
The spelling of 994507 in words is "nine hundred ninety-four thousand, five hundred seven".