70783 has 2 divisors, whose sum is σ = 70784. Its totient is φ = 70782.

The previous prime is 70769. The next prime is 70793. The reversal of 70783 is 38707.

It is a strong prime.

It is an emirp because it is prime and its reverse (38707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70783 - 2⁹ = 70271 is a prime.

It is an alternating number because its digits alternate between odd and even.

70783 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35391 + 35392.

It is an arithmetic number, because the mean of its divisors is an integer number (35392).

2⁷⁰⁷⁸³ is an apocalyptic number.

70783 is a deficient number, since it is larger than the sum of its proper divisors (1).

70783 is an equidigital number, since it uses as much as digits as its factorization.

70783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 70783 is about 266.0507470390. The cubic root of 70783 is about 41.3659486472.

The spelling of 70783 in words is "seventy thousand, seven hundred eighty-three".