75339957 has 16 divisors (see below), whose sum is σ = 125240832. Its totient is φ = 39137520.

The previous prime is 75339947. The next prime is 75339967. The reversal of 75339957 is 75993357.

It is an interprime number because it is at equal distance from previous prime (75339947) and next prime (75339967).

It is not a de Polignac number, because 75339957 - 2⁶ = 75339893 is a prime.

It is a super-2 number, since 2×75339957² = 11352218241523698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75339907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162843 + ... + 163304.

It is an arithmetic number, because the mean of its divisors is an integer number (7827552).

Almost surely, 2^75339957 is an apocalyptic number.

75339957 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

75339957 is a deficient number, since it is larger than the sum of its proper divisors (49900875).

75339957 is a wasteful number, since it uses less digits than its factorization.

75339957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326168.

The product of its digits is 893025, while the sum is 48.

The square root of 75339957 is about 8679.8592730528. The cubic root of 75339957 is about 422.3525519818.

The spelling of 75339957 in words is "seventy-five million, three hundred thirty-nine thousand, nine hundred fifty-seven".