70340351 has 2 divisors, whose sum is σ = 70340352. Its totient is φ = 70340350.

The previous prime is 70340323. The next prime is 70340357. The reversal of 70340351 is 15304307.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70340351 - 2⁶ = 70340287 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70340357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35170175 + 35170176.

It is an arithmetic number, because the mean of its divisors is an integer number (35170176).

Almost surely, 2^70340351 is an apocalyptic number.

70340351 is a deficient number, since it is larger than the sum of its proper divisors (1).

70340351 is an equidigital number, since it uses as much as digits as its factorization.

70340351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 70340351 is about 8386.9154639832. The cubic root of 70340351 is about 412.7953949037.

Adding to 70340351 its reverse (15304307), we get a palindrome (85644658).

The spelling of 70340351 in words is "seventy million, three hundred forty thousand, three hundred fifty-one".