70278983 has 2 divisors, whose sum is σ = 70278984. Its totient is φ = 70278982.

The previous prime is 70278911. The next prime is 70278997. The reversal of 70278983 is 38987207.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70278983 - 2¹⁶ = 70213447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70218983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35139491 + 35139492.

It is an arithmetic number, because the mean of its divisors is an integer number (35139492).

Almost surely, 2^70278983 is an apocalyptic number.

70278983 is a deficient number, since it is larger than the sum of its proper divisors (1).

70278983 is an equidigital number, since it uses as much as digits as its factorization.

70278983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 70278983 is about 8383.2561096510. The cubic root of 70278983 is about 412.6753130539.

The spelling of 70278983 in words is "seventy million, two hundred seventy-eight thousand, nine hundred eighty-three".