70442477 has 4 divisors (see below), whose sum is σ = 80505696. Its totient is φ = 60379260.

The previous prime is 70442431. The next prime is 70442503. The reversal of 70442477 is 77424407.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77424407 = 127 ⋅609641.

It is a cyclic number.

It is not a de Polignac number, because 70442477 - 2⁸ = 70442221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70442377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5031599 + ... + 5031612.

It is an arithmetic number, because the mean of its divisors is an integer number (20126424).

Almost surely, 2^70442477 is an apocalyptic number.

It is an amenable number.

70442477 is a deficient number, since it is larger than the sum of its proper divisors (10063219).

70442477 is a wasteful number, since it uses less digits than its factorization.

70442477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10063218.

The product of its (nonzero) digits is 43904, while the sum is 35.

The square root of 70442477 is about 8393.0016680565. The cubic root of 70442477 is about 412.9950752480.

The spelling of 70442477 in words is "seventy million, four hundred forty-two thousand, four hundred seventy-seven".