70683381 has 16 divisors (see below), whose sum is σ = 105981120. Its totient is φ = 46553040.

The previous prime is 70683377. The next prime is 70683409. The reversal of 70683381 is 18338607.

It is not a de Polignac number, because 70683381 - 2² = 70683377 is a prime.

It is a super-2 number, since 2×70683381² = 9992280699182322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70683181) 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, 13530 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (6623820).

Almost surely, 2^70683381 is an apocalyptic number.

It is an amenable number.

70683381 is a deficient number, since it is larger than the sum of its proper divisors (35297739).

70683381 is a wasteful number, since it uses less digits than its factorization.

70683381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31633 (or 31627 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 70683381 is about 8407.3408994759. The cubic root of 70683381 is about 413.4653358452.

The spelling of 70683381 in words is "seventy million, six hundred eighty-three thousand, three hundred eighty-one".