70674409 has 4 divisors (see below), whose sum is σ = 76110916. Its totient is φ = 65237904.

The previous prime is 70674397. The next prime is 70674419. The reversal of 70674409 is 90447607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90447607 = 29 ⋅3118883.

It can be written as a sum of positive squares in 2 ways, for example, as 39000025 + 31674384 = 6245^2 + 5628^2 .

It is a cyclic number.

It is not a de Polignac number, because 70674409 - 2¹¹ = 70672361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70674419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2718234 + ... + 2718259.

It is an arithmetic number, because the mean of its divisors is an integer number (19027729).

Almost surely, 2^70674409 is an apocalyptic number.

It is an amenable number.

70674409 is a deficient number, since it is larger than the sum of its proper divisors (5436507).

70674409 is a wasteful number, since it uses less digits than its factorization.

70674409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436506.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 70674409 is about 8406.8073012292. The cubic root of 70674409 is about 413.4478410776.

It can be divided in two parts, 7067 and 4409, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 70674409 in words is "seventy million, six hundred seventy-four thousand, four hundred nine".