248403397 has 16 divisors (see below), whose sum is σ = 286528320. Its totient is φ = 212976000.

The previous prime is 248403383. The next prime is 248403401. The reversal of 248403397 is 793304842.

It is a cyclic number.

It is not a de Polignac number, because 248403397 - 2¹⁹ = 247879109 is a prime.

It is a super-2 number, since 2×248403397² = 123408495282279218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248403307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46147 + ... + 51247.

It is an arithmetic number, because the mean of its divisors is an integer number (17908020).

Almost surely, 2^248403397 is an apocalyptic number.

It is an amenable number.

248403397 is a deficient number, since it is larger than the sum of its proper divisors (38124923).

248403397 is a wasteful number, since it uses less digits than its factorization.

248403397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 248403397 is about 15760.8184114912. The cubic root of 248403397 is about 628.6165974305.

The spelling of 248403397 in words is "two hundred forty-eight million, four hundred three thousand, three hundred ninety-seven".