494697901 has 4 divisors (see below), whose sum is σ = 496484092. Its totient is φ = 492911712.

The previous prime is 494697887. The next prime is 494697947. The reversal of 494697901 is 109796494.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141633801 + 353064100 = 11901^2 + 18790^2 .

It is a cyclic number.

It is not a de Polignac number, because 494697901 - 2¹³ = 494689709 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 (494397901) 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, 892680 + ... + 893233.

It is an arithmetic number, because the mean of its divisors is an integer number (124121023).

Almost surely, 2^494697901 is an apocalyptic number.

It is an amenable number.

494697901 is a deficient number, since it is larger than the sum of its proper divisors (1786191).

494697901 is a wasteful number, since it uses less digits than its factorization.

494697901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786190.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 494697901 is about 22241.8052549698. The cubic root of 494697901 is about 790.8850312090.

The spelling of 494697901 in words is "four hundred ninety-four million, six hundred ninety-seven thousand, nine hundred one".