70977955 has 4 divisors (see below), whose sum is σ = 85173552. Its totient is φ = 56782360.

The previous prime is 70977947. The next prime is 70977961. The reversal of 70977955 is 55977907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55977907 = 1997 ⋅28031.

It is not a de Polignac number, because 70977955 - 2³ = 70977947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70977899 and 70977908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7097791 + ... + 7097800.

It is an arithmetic number, because the mean of its divisors is an integer number (21293388).

Almost surely, 2^70977955 is an apocalyptic number.

70977955 is a deficient number, since it is larger than the sum of its proper divisors (14195597).

70977955 is a wasteful number, since it uses less digits than its factorization.

70977955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14195596.

The product of its (nonzero) digits is 694575, while the sum is 49.

The square root of 70977955 is about 8424.8415415366. The cubic root of 70977955 is about 414.0389140143.

The spelling of 70977955 in words is "seventy million, nine hundred seventy-seven thousand, nine hundred fifty-five".