70978995 has 96 divisors (see below), whose sum is σ = 139636224. Its totient is φ = 33177600.

The previous prime is 70978993. The next prime is 70978997. The reversal of 70978995 is 59987907.

It is an interprime number because it is at equal distance from previous prime (70978993) and next prime (70978997).

It is not a de Polignac number, because 70978995 - 2¹ = 70978993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70978991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 972279 + ... + 972351.

It is an arithmetic number, because the mean of its divisors is an integer number (1454544).

It is a vampire number, since it can be written as 7905 ⋅ 8979 (with its own digits).

Almost surely, 2^70978995 is an apocalyptic number.

70978995 is a deficient number, since it is larger than the sum of its proper divisors (68657229).

70978995 is a wasteful number, since it uses less digits than its factorization.

70978995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The square root of 70978995 is about 8424.9032635396. The cubic root of 70978995 is about 414.0409362308.

The spelling of 70978995 in words is "seventy million, nine hundred seventy-eight thousand, nine hundred ninety-five".