71400770 has 16 divisors (see below), whose sum is σ = 146881728. Its totient is φ = 24480240.

The previous prime is 71400767. The next prime is 71400811. The reversal of 71400770 is 7700417.

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, 509936 + ... + 510075.

It is an arithmetic number, because the mean of its divisors is an integer number (9180108).

Almost surely, 2^71400770 is an apocalyptic number.

71400770 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71400770 is an abundant number, since it is smaller than the sum of its proper divisors (75480958).

71400770 is a wasteful number, since it uses less digits than its factorization.

71400770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020025.

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 71400770 is about 8449.8976325160. The cubic root of 71400770 is about 414.8594288504.

The spelling of 71400770 in words is "seventy-one million, four hundred thousand, seven hundred seventy".