70890346 has 8 divisors (see below), whose sum is σ = 106374564. Its totient is φ = 35432160.

The previous prime is 70890343. The next prime is 70890361. The reversal of 70890346 is 64309807.

It can be written as a sum of positive squares in 2 ways, for example, as 67322025 + 3568321 = 8205^2 + 1889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (70890343) 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, 3196 + ... + 12328.

Almost surely, 2^70890346 is an apocalyptic number.

70890346 is a deficient number, since it is larger than the sum of its proper divisors (35484218).

70890346 is a wasteful number, since it uses less digits than its factorization.

70890346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13016.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 70890346 is about 8419.6404911374. The cubic root of 70890346 is about 413.8684926971.

The spelling of 70890346 in words is "seventy million, eight hundred ninety thousand, three hundred forty-six".