70450691 has 2 divisors, whose sum is σ = 70450692. Its totient is φ = 70450690.

The previous prime is 70450687. The next prime is 70450717. The reversal of 70450691 is 19605407.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70450691 - 2² = 70450687 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70450291) 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, 35225345 + 35225346.

It is an arithmetic number, because the mean of its divisors is an integer number (35225346).

Almost surely, 2^70450691 is an apocalyptic number.

70450691 is a deficient number, since it is larger than the sum of its proper divisors (1).

70450691 is an equidigital number, since it uses as much as digits as its factorization.

70450691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 70450691 is about 8393.4909900470. The cubic root of 70450691 is about 413.0111271618.

The spelling of 70450691 in words is "seventy million, four hundred fifty thousand, six hundred ninety-one".