70271409 has 16 divisors (see below), whose sum is σ = 102412352. Its totient is φ = 42596928.

The previous prime is 70271407. The next prime is 70271431. The reversal of 70271409 is 90417207.

It is not a de Polignac number, because 70271409 - 2¹ = 70271407 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70271401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10834 + ... + 16059.

It is an arithmetic number, because the mean of its divisors is an integer number (6400772).

Almost surely, 2^70271409 is an apocalyptic number.

It is an amenable number.

70271409 is a deficient number, since it is larger than the sum of its proper divisors (32140943).

70271409 is a wasteful number, since it uses less digits than its factorization.

70271409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26976.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 70271409 is about 8382.8043636960. The cubic root of 70271409 is about 412.6604877819.

The spelling of 70271409 in words is "seventy million, two hundred seventy-one thousand, four hundred nine".