70749075 has 12 divisors (see below), whose sum is σ = 116971928. Its totient is φ = 37732800.

The previous prime is 70749073. The next prime is 70749089. The reversal of 70749075 is 57094707.

It is not a de Polignac number, because 70749075 - 2¹ = 70749073 is a prime.

It is a super-2 number, since 2×70749075² = 10010863226711250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70749073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 471586 + ... + 471735.

Almost surely, 2^70749075 is an apocalyptic number.

70749075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

70749075 is a deficient number, since it is larger than the sum of its proper divisors (46222853).

70749075 is a wasteful number, since it uses less digits than its factorization.

70749075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943334 (or 943329 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 70749075 is about 8411.2469349080. The cubic root of 70749075 is about 413.5933894309.

The spelling of 70749075 in words is "seventy million, seven hundred forty-nine thousand, seventy-five".