74870913 has 8 divisors (see below), whose sum is σ = 107507008. Its totient is φ = 46074384.

The previous prime is 74870899. The next prime is 74870923. The reversal of 74870913 is 31907847.

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

It is not a de Polignac number, because 74870913 - 2⁸ = 74870657 is a prime.

It is a super-2 number, since 2×74870913² = 11211307226907138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1919767 = 74870913 / (7 + 4 + 8 + 7 + 0 + 9 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74870923) by changing a digit.

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, 959845 + ... + 959922.

It is an arithmetic number, because the mean of its divisors is an integer number (13438376).

Almost surely, 2^74870913 is an apocalyptic number.

It is an amenable number.

74870913 is a deficient number, since it is larger than the sum of its proper divisors (32636095).

74870913 is a wasteful number, since it uses less digits than its factorization.

74870913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919783.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 74870913 is about 8652.7979867786. The cubic root of 74870913 is about 421.4742466137.

The spelling of 74870913 in words is "seventy-four million, eight hundred seventy thousand, nine hundred thirteen".