70061977 has 8 divisors (see below), whose sum is σ = 71731520. Its totient is φ = 68409360.

The previous prime is 70061903. The next prime is 70061993. The reversal of 70061977 is 77916007.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70061977 is a prime.

It is a super-2 number, since 2×70061977² = 9817361242297058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70061077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4348 + ... + 12610.

It is an arithmetic number, because the mean of its divisors is an integer number (8966440).

Almost surely, 2^70061977 is an apocalyptic number.

It is an amenable number.

70061977 is a deficient number, since it is larger than the sum of its proper divisors (1669543).

70061977 is a wasteful number, since it uses less digits than its factorization.

70061977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8463.

The product of its (nonzero) digits is 18522, while the sum is 37.

The square root of 70061977 is about 8370.3032800491. The cubic root of 70061977 is about 412.2501250060.

The spelling of 70061977 in words is "seventy million, sixty-one thousand, nine hundred seventy-seven".