393028497 has 8 divisors (see below), whose sum is σ = 582264480. Its totient is φ = 262018980.

The previous prime is 393028483. The next prime is 393028507. The reversal of 393028497 is 794820393.

It is a happy number.

It is not a de Polignac number, because 393028497 - 2¹¹ = 393026449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (393028417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7278279 + ... + 7278332.

It is an arithmetic number, because the mean of its divisors is an integer number (72783060).

Almost surely, 2^393028497 is an apocalyptic number.

It is an amenable number.

393028497 is a deficient number, since it is larger than the sum of its proper divisors (189235983).

393028497 is a wasteful number, since it uses less digits than its factorization.

393028497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14556620 (or 14556614 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 393028497 is about 19824.9463303183. The cubic root of 393028497 is about 732.5006485024.

The spelling of 393028497 in words is "three hundred ninety-three million, twenty-eight thousand, four hundred ninety-seven".