494652397 has 4 divisors (see below), whose sum is σ = 495068220. Its totient is φ = 494236576.

The previous prime is 494652343. The next prime is 494652437. The reversal of 494652397 is 793256494.

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 145298916 + 349353481 = 12054^2 + 18691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494652397 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 494652397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494652097) 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, 206122 + ... + 208507.

It is an arithmetic number, because the mean of its divisors is an integer number (123767055).

Almost surely, 2^494652397 is an apocalyptic number.

It is an amenable number.

494652397 is a deficient number, since it is larger than the sum of its proper divisors (415823).

494652397 is a wasteful number, since it uses less digits than its factorization.

494652397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415822.

The product of its digits is 1632960, while the sum is 49.

The square root of 494652397 is about 22240.7822928961. The cubic root of 494652397 is about 790.8607810313.

The spelling of 494652397 in words is "four hundred ninety-four million, six hundred fifty-two thousand, three hundred ninety-seven".