70491406 has 16 divisors (see below), whose sum is σ = 111488400. Its totient is φ = 33334848.

The previous prime is 70491391. The next prime is 70491409. The reversal of 70491406 is 60419407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70491409) 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 in 7 ways as a sum of consecutive naturals, for example, 29596 + ... + 31888.

It is an arithmetic number, because the mean of its divisors is an integer number (6968025).

Almost surely, 2^70491406 is an apocalyptic number.

70491406 is a deficient number, since it is larger than the sum of its proper divisors (40996994).

70491406 is a wasteful number, since it uses less digits than its factorization.

70491406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 70491406 is about 8395.9160310237. The cubic root of 70491406 is about 413.0906745703.

The spelling of 70491406 in words is "seventy million, four hundred ninety-one thousand, four hundred six".