70463978 has 16 divisors (see below), whose sum is σ = 114337440. Its totient is φ = 32375856.

The previous prime is 70463969. The next prime is 70464007. The reversal of 70463978 is 87936407.

It is a super-3 number, since 3×70463978³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

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, 68 + ... + 11871.

It is an arithmetic number, because the mean of its divisors is an integer number (7146090).

Almost surely, 2^70463978 is an apocalyptic number.

70463978 is a deficient number, since it is larger than the sum of its proper divisors (43873462).

70463978 is a wasteful number, since it uses less digits than its factorization.

70463978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12181.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 70463978 is about 8394.2824589121. The cubic root of 70463978 is about 413.0370901619.

The spelling of 70463978 in words is "seventy million, four hundred sixty-three thousand, nine hundred seventy-eight".