75378499 has 8 divisors (see below), whose sum is σ = 87360768. Its totient is φ = 63699720.

The previous prime is 75378469. The next prime is 75378533. The reversal of 75378499 is 99487357.

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

It is not a de Polignac number, because 75378499 - 2⁵ = 75378467 is a prime.

It is a super-2 number, since 2×75378499² = 11363836222986002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75378419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75337 + ... + 76330.

It is an arithmetic number, because the mean of its divisors is an integer number (10920096).

Almost surely, 2^75378499 is an apocalyptic number.

75378499 is a deficient number, since it is larger than the sum of its proper divisors (11982269).

75378499 is a wasteful number, since it uses less digits than its factorization.

75378499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151745.

The product of its digits is 1905120, while the sum is 52.

The square root of 75378499 is about 8682.0791864622. The cubic root of 75378499 is about 422.4245613008.

The spelling of 75378499 in words is "seventy-five million, three hundred seventy-eight thousand, four hundred ninety-nine".