70718775 has 12 divisors (see below), whose sum is σ = 116921832. Its totient is φ = 37716640.

The previous prime is 70718771. The next prime is 70718797. The reversal of 70718775 is 57781707.

It is not a de Polignac number, because 70718775 - 2² = 70718771 is a prime.

It is a super-2 number, since 2×70718775² = 10002290275001250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70718771) 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, 471384 + ... + 471533.

It is an arithmetic number, because the mean of its divisors is an integer number (9743486).

Almost surely, 2^70718775 is an apocalyptic number.

70718775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

70718775 is a deficient number, since it is larger than the sum of its proper divisors (46203057).

70718775 is a wasteful number, since it uses less digits than its factorization.

70718775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942930 (or 942925 counting only the distinct ones).

The product of its (nonzero) digits is 96040, while the sum is 42.

The square root of 70718775 is about 8409.4455822010. The cubic root of 70718775 is about 413.5343372141.

The spelling of 70718775 in words is "seventy million, seven hundred eighteen thousand, seven hundred seventy-five".