62978947 has 4 divisors (see below), whose sum is σ = 62995696. Its totient is φ = 62962200.

The previous prime is 62978941. The next prime is 62978959. The reversal of 62978947 is 74987926.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 62978947 - 2⁷ = 62978819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 62978894 and 62978903.

It is not an unprimeable number, because it can be changed into a prime (62978941) 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, 178 + ... + 11224.

It is an arithmetic number, because the mean of its divisors is an integer number (15748924).

Almost surely, 2^62978947 is an apocalyptic number.

62978947 is a deficient number, since it is larger than the sum of its proper divisors (16749).

62978947 is a wasteful number, since it uses less digits than its factorization.

62978947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16748.

The product of its digits is 1524096, while the sum is 52.

The square root of 62978947 is about 7935.9276080368. The cubic root of 62978947 is about 397.8613925227.

The spelling of 62978947 in words is "sixty-two million, nine hundred seventy-eight thousand, nine hundred forty-seven".