70549379 has 2 divisors, whose sum is σ = 70549380. Its totient is φ = 70549378.

The previous prime is 70549357. The next prime is 70549393. The reversal of 70549379 is 97394507.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70549379 is a prime.

It is not a weakly prime, because it can be changed into another prime (70549279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35274689 + 35274690.

It is an arithmetic number, because the mean of its divisors is an integer number (35274690).

Almost surely, 2^70549379 is an apocalyptic number.

70549379 is a deficient number, since it is larger than the sum of its proper divisors (1).

70549379 is an equidigital number, since it uses as much as digits as its factorization.

70549379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 70549379 is about 8399.3677738268. The cubic root of 70549379 is about 413.2038871587.

The spelling of 70549379 in words is "seventy million, five hundred forty-nine thousand, three hundred seventy-nine".