74906919 has 24 divisors (see below), whose sum is σ = 110401200. Its totient is φ = 48932352.

The previous prime is 74906893. The next prime is 74906921. The reversal of 74906919 is 91960947.

It is not a de Polignac number, because 74906919 - 2¹¹ = 74904871 is a prime.

It is a super-2 number, since 2×74906919² = 11222093028145122, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74901919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110967 + ... + 111639.

It is an arithmetic number, because the mean of its divisors is an integer number (4600050).

Almost surely, 2^74906919 is an apocalyptic number.

74906919 is a deficient number, since it is larger than the sum of its proper divisors (35494281).

74906919 is a wasteful number, since it uses less digits than its factorization.

74906919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 74906919 is about 8654.8783353667. The cubic root of 74906919 is about 421.5417991922.

The spelling of 74906919 in words is "seventy-four million, nine hundred six thousand, nine hundred nineteen".