70077345 has 32 divisors (see below), whose sum is σ = 122304000. Its totient is φ = 34055424.

The previous prime is 70077341. The next prime is 70077347. The reversal of 70077345 is 54377007.

It is not a de Polignac number, because 70077345 - 2² = 70077341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70077341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13131 + ... + 17679.

It is an arithmetic number, because the mean of its divisors is an integer number (3822000).

Almost surely, 2^70077345 is an apocalyptic number.

It is an amenable number.

70077345 is a deficient number, since it is larger than the sum of its proper divisors (52226655).

70077345 is a wasteful number, since it uses less digits than its factorization.

70077345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649.

The product of its (nonzero) digits is 20580, while the sum is 33.

The square root of 70077345 is about 8371.2212370717. The cubic root of 70077345 is about 412.2802649718.

It can be divided in two parts, 7007 and 7345, that multiplied together give a palindrome (51466415).

The spelling of 70077345 in words is "seventy million, seventy-seven thousand, three hundred forty-five".