70403986 has 16 divisors (see below), whose sum is σ = 108355104. Its totient is φ = 34290144.

The previous prime is 70403951. The next prime is 70404013. The reversal of 70403986 is 68930407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39286 + ... + 41038.

It is an arithmetic number, because the mean of its divisors is an integer number (6772194).

Almost surely, 2^70403986 is an apocalyptic number.

70403986 is a deficient number, since it is larger than the sum of its proper divisors (37951118).

70403986 is a wasteful number, since it uses less digits than its factorization.

70403986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265.

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

The square root of 70403986 is about 8390.7083133666. The cubic root of 70403986 is about 412.9198389683.

It can be divided in two parts, 7040 and 3986, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 70403986 in words is "seventy million, four hundred three thousand, nine hundred eighty-six".