70549279 has 2 divisors, whose sum is σ = 70549280. Its totient is φ = 70549278.

The previous prime is 70549247. The next prime is 70549331. The reversal of 70549279 is 97294507.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70549279 - 2⁵ = 70549247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70549379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35274639 + 35274640.

It is an arithmetic number, because the mean of its divisors is an integer number (35274640).

Almost surely, 2^70549279 is an apocalyptic number.

70549279 is a deficient number, since it is larger than the sum of its proper divisors (1).

70549279 is an equidigital number, since it uses as much as digits as its factorization.

70549279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 70549279 is about 8399.3618209957. The cubic root of 70549279 is about 413.2036919271.

The spelling of 70549279 in words is "seventy million, five hundred forty-nine thousand, two hundred seventy-nine".