70497263 has 4 divisors (see below), whose sum is σ = 70534968. Its totient is φ = 70459560.

The previous prime is 70497241. The next prime is 70497269. The reversal of 70497263 is 36279407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36279407 = 79 ⋅459233.

It is a cyclic number.

It is not a de Polignac number, because 70497263 - 2¹² = 70493167 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 (70497269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15893 + ... + 19838.

It is an arithmetic number, because the mean of its divisors is an integer number (17633742).

Almost surely, 2^70497263 is an apocalyptic number.

70497263 is a deficient number, since it is larger than the sum of its proper divisors (37705).

70497263 is a wasteful number, since it uses less digits than its factorization.

70497263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37704.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 70497263 is about 8396.2648243132. The cubic root of 70497263 is about 413.1021152324.

The spelling of 70497263 in words is "seventy million, four hundred ninety-seven thousand, two hundred sixty-three".